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211021002001212 = 223132081883173607
BaseRepresentation
bin101111111110110000100111…
…110111010100101100111100
31000200011102002110020221101120
4233332300213313110230330
5210124332003003014322
62024445413210510540
762306523101542314
oct5776604767245474
91020142073227346
10211021002001212
1161268560361657
121b80134a735450
13909926c848890
143a17684590444
15195e21943da5c
hexbfec27dd4b3c

211021002001212 has 96 divisors (see below), whose sum is σ = 530579993739264. Its totient is φ = 64890107443200.

The previous prime is 211021002001207. The next prime is 211021002001253. The reversal of 211021002001212 is 212100200120112.

It is a super-3 number, since 3×2110210020012123 (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211021002001191 and 211021002001200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2866823713 + ... + 2866897319.

It is an arithmetic number, because the mean of its divisors is an integer number (5526874934784).

Almost surely, 2211021002001212 is an apocalyptic number.

It is an amenable number.

211021002001212 is an abundant number, since it is smaller than the sum of its proper divisors (319558991738052).

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

211021002001212 is a wasteful number, since it uses less digits than its factorization.

211021002001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84539 (or 84537 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211021002001212 its reverse (212100200120112), we get a palindrome (423121202121324).

The spelling of 211021002001212 in words is "two hundred eleven trillion, twenty-one billion, two million, one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 2081 4162 6243 8324 8831 12486 17662 24972 26493 27053 35324 52986 54106 73607 81159 105972 108212 114803 147214 162318 220821 229606 294428 324636 344409 441642 459212 688818 883284 956891 1377636 1913782 2870673 3827564 5741346 11482692 18377311 36754622 55131933 73509244 110263866 153176167 220527732 238905043 306352334 459528501 477810086 612704668 650023417 716715129 919057002 955620172 1300046834 1433430258 1838114004 1950070251 1991290171 2600093668 2866860516 3900140502 3982580342 5973870513 7800281004 7965160684 8450304421 11947741026 16900608842 23895482052 25350913263 33801217684 50701826526 101403653052 1352698730777 2705397461554 4058096192331 5410794923108 8116192384662 16232384769324 17585083500101 35170167000202 52755250500303 70340334000404 105510501000606 211021002001212