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212210121001120 = 25511137218787547
BaseRepresentation
bin110000010000000100000100…
…111000010100100010100000
31000211101002102012102222022121
4300100010010320110202200
5210303322311434013440
62031155552253514024
762461450424350114
oct6020040470244240
91024332365388277
10212210121001120
1161686896aa9290
121b9738b01a2914
139154436a72898
143a5904b943744
151980113c4434a
hexc10104e148a0

212210121001120 has 96 divisors (see below), whose sum is σ = 546963279863616. Its totient is φ = 77161683916800.

The previous prime is 212210121001093. The next prime is 212210121001129. The reversal of 212210121001120 is 21100121012212.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 212210121001094 and 212210121001103.

It is not an unprimeable number, because it can be changed into a prime (212210121001129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19755187 + ... + 28542733.

It is an arithmetic number, because the mean of its divisors is an integer number (5697534165246).

Almost surely, 2212210121001120 is an apocalyptic number.

212210121001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210121001120 is an abundant number, since it is smaller than the sum of its proper divisors (334753158862496).

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

212210121001120 is a wasteful number, since it uses less digits than its factorization.

212210121001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8801294 (or 8801286 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212210121001120 its reverse (21100121012212), we get a palindrome (233310242013332).

The spelling of 212210121001120 in words is "two hundred twelve trillion, two hundred ten billion, one hundred twenty-one million, one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 13721 27442 54884 68605 109768 137210 150931 219536 274420 301862 439072 548840 603724 754655 1097680 1207448 1509310 2195360 2414896 3018620 4829792 6037240 8787547 12074480 17575094 24148960 35150188 43937735 70300376 87875470 96663017 140600752 175750940 193326034 281201504 351501880 386652068 483315085 703003760 773304136 966630170 1406007520 1546608272 1933260340 3093216544 3866520680 7733041360 15466082720 120573932387 241147864774 482295729548 602869661935 964591459096 1205739323870 1326313256257 1929182918192 2411478647740 2652626512514 3858365836384 4822957295480 5305253025028 6631566281285 9645914590960 10610506050056 13263132562570 19291829181920 21221012100112 26526265125140 42442024200224 53052530250280 106105060500560 212210121001120