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212011121120202 = 2321937161310387151
BaseRepresentation
bin110000001101001010101111…
…100100000001001111001010
31000210200001202120001121021200
4300031022233210001033022
5210242042234001321302
62030524321531445030
762441204136311145
oct6015125744011712
91023601676047250
10212011121120202
116160a458832388
121b9412135b6776
13913b741a02b61
143a4d57060105c
151979d684c681c
hexc0d2af9013ca

212011121120202 has 96 divisors (see below), whose sum is σ = 496910549041920. Its totient is φ = 65101005590400.

The previous prime is 212011121120189. The next prime is 212011121120207. The reversal of 212011121120202 is 202021121110212.

212011121120202 is a `hidden beast` number, since 2 + 120 + 111 + 211 + 20 + 202 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (212011121120207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15217327 + ... + 25604477.

It is an arithmetic number, because the mean of its divisors is an integer number (5176151552520).

Almost surely, 2212011121120202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212011121120202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248455274520960).

212011121120202 is an abundant number, since it is smaller than the sum of its proper divisors (284899427921718).

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

212011121120202 is a wasteful number, since it uses less digits than its factorization.

212011121120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10388828 (or 10388825 counting only the distinct ones).

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

Adding to 212011121120202 its reverse (202021121110212), we get a palindrome (414032242230414).

The spelling of 212011121120202 in words is "two hundred twelve trillion, eleven billion, one hundred twenty-one million, one hundred twenty thousand, two hundred two".

Divisors: 1 2 3 6 9 18 19 37 38 57 74 111 114 171 222 333 342 666 703 1406 1613 2109 3226 4218 4839 6327 9678 12654 14517 29034 30647 59681 61294 91941 119362 179043 183882 275823 358086 537129 551646 1074258 1133939 2267878 3401817 6803634 10205451 10387151 20410902 20774302 31161453 62322906 93484359 186968718 197355869 384324587 394711738 592067607 768649174 1152973761 1184135214 1776202821 2305947522 3458921283 3552405642 6917842566 7302167153 14604334306 16754474563 21906501459 33508949126 43813002918 50263423689 65719504377 100526847378 131439008754 150790271067 301580542134 318335016697 619915558831 636670033394 955005050091 1239831117662 1859746676493 1910010100182 2865015150273 3719493352986 5579240029479 5730030300546 11158480058958 11778395617789 23556791235578 35335186853367 70670373706734 106005560560101 212011121120202