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2112202102212 = 2232220726584631
BaseRepresentation
bin11110101111001001000…
…011100101010111000100
321110220221222220012200100
4132233021003211113010
5234101242214232322
64254155433244100
7305413223431416
oct36571103452704
97426858805610
102112202102212
11744864026984
122a1438263630
1312424504a727
14743342da9b6
1539e235a9dac
hex1ebc90e55c4

2112202102212 has 36 divisors (see below), whose sum is σ = 5341596938496. Its totient is φ = 703748325360.

The previous prime is 2112202102159. The next prime is 2112202102223. The reversal of 2112202102212 is 2122012022112.

It is a happy number.

2112202102212 is a `hidden beast` number, since 2 + 11 + 220 + 210 + 221 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×21122021022122 (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13212864 + ... + 13371767.

It is an arithmetic number, because the mean of its divisors is an integer number (148377692736).

Almost surely, 22112202102212 is an apocalyptic number.

It is an amenable number.

2112202102212 is an abundant number, since it is smaller than the sum of its proper divisors (3229394836284).

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

2112202102212 is a wasteful number, since it uses less digits than its factorization.

2112202102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26586848 (or 26586843 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2112202102212 its reverse (2122012022112), we get a palindrome (4234214124324).

The spelling of 2112202102212 in words is "two trillion, one hundred twelve billion, two hundred two million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 2207 4414 6621 8828 13242 19863 26484 39726 79452 26584631 53169262 79753893 106338524 159507786 239261679 319015572 478523358 957046716 58672280617 117344561234 176016841851 234689122468 352033683702 528050525553 704067367404 1056101051106 2112202102212