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211212210201120 = 25325316434635311
BaseRepresentation
bin110000000001100010101100…
…110000101110001000100000
31000200211200122002012220110100
4300001202230300232020200
5210141000101302413440
62025113314434102400
762326402315454142
oct6001425460561040
91020750562186410
10211212210201120
1161331660405267
121b832411a1aa00
1390b12c258317b
143a22a22b74c92
1519641aab10230
hexc018acc2e220

211212210201120 has 144 divisors (see below), whose sum is σ = 720784600728192. Its totient is φ = 56321463943680.

The previous prime is 211212210201101. The next prime is 211212210201151. The reversal of 211212210201120 is 21102012212112.

211212210201120 is a `hidden beast` number, since 2 + 1 + 121 + 221 + 0 + 201 + 120 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×2112122102011202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211212210201093 and 211212210201102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43248265 + ... + 47883575.

It is an arithmetic number, because the mean of its divisors is an integer number (5005448616168).

Almost surely, 2211212210201120 is an apocalyptic number.

211212210201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211212210201120 is an abundant number, since it is smaller than the sum of its proper divisors (509572390527072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211212210201120 is a wasteful number, since it uses less digits than its factorization.

211212210201120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4666975 (or 4666964 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211212210201120 its reverse (21102012212112), we get a palindrome (232314222413232).

The spelling of 211212210201120 in words is "two hundred eleven trillion, two hundred twelve billion, two hundred ten million, two hundred one thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 31643 63286 94929 126572 158215 189858 253144 284787 316430 379716 474645 506288 569574 632860 759432 949290 1012576 1139148 1265720 1423935 1518864 1898580 2278296 2531440 2847870 3037728 3797160 4556592 4635311 5062880 5695740 7594320 9113184 9270622 11391480 13905933 15188640 18541244 22782960 23176555 27811866 37082488 41717799 45565920 46353110 55623732 69529665 74164976 83435598 92706220 111247464 139059330 148329952 166871196 185412440 208588995 222494928 278118660 333742392 370824880 417177990 444989856 556237320 667484784 741649760 834355980 1112474640 1334969568 1668711960 2224949280 3337423920 6674847840 146675145973 293350291946 440025437919 586700583892 733375729865 880050875838 1173401167784 1320076313757 1466751459730 1760101751676 2200127189595 2346802335568 2640152627514 2933502919460 3520203503352 4400254379190 4693604671136 5280305255028 5867005838920 6600381568785 7040407006704 8800508758380 10560610510056 11734011677840 13200763137570 14080814013408 17601017516760 21121221020112 23468023355680 26401526275140 35202035033520 42242442040224 52803052550280 70404070067040 105606105100560 211212210201120