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12020210022212 = 2271988372556793
BaseRepresentation
bin1010111011101010110001…
…0110010011011101000100
31120120010021002210121100122
42232322230112103131010
53033414342231202322
641322001441001112
72350301003245040
oct256725426233504
946503232717318
1012020210022212
1139148192116a7
121421720023198
13692668750502
142d7ad1b35020
1515ca17325442
hexaeeac593744

12020210022212 has 48 divisors (see below), whose sum is σ = 25308578816640. Its totient is φ = 4879831848192.

The previous prime is 12020210022179. The next prime is 12020210022221. The reversal of 12020210022212 is 21222001202021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3422888 + ... + 5979680.

It is an arithmetic number, because the mean of its divisors is an integer number (527262058680).

Almost surely, 212020210022212 is an apocalyptic number.

It is an amenable number.

12020210022212 is an abundant number, since it is smaller than the sum of its proper divisors (13288368794428).

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

12020210022212 is a wasteful number, since it uses less digits than its factorization.

12020210022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565660 (or 2565658 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12020210022212 its reverse (21222001202021), we get a palindrome (33242211224233).

The spelling of 12020210022212 in words is "twelve trillion, twenty billion, two hundred ten million, twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 8837 17674 35348 61859 123718 167903 247436 335806 671612 1175321 2350642 2556793 4701284 5113586 10227172 17897551 35795102 48579067 71590204 97158134 194316268 340053469 680106938 1360213876 22594379741 45188759482 90377518964 158160658187 316321316374 429293215079 632642632748 858586430158 1717172860316 3005052505553 6010105011106 12020210022212