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13121320022212 = 224884767155199
BaseRepresentation
bin1011111011110000101110…
…0111100111000011000100
31201110101102100112012211111
42332330023213213003010
53204434430411202322
643523503505414404
72522661353645143
oct276741347470304
951411370465744
1013121320022212
1141a97a2098066
12157abbb63a404
1374244849accc
1433510a7c175a
1517b4b0485177
hexbef0b9e70c4

13121320022212 has 12 divisors (see below), whose sum is σ = 22962780467200. Its totient is φ = 6560525603016.

The previous prime is 13121320022177. The next prime is 13121320022221. The reversal of 13121320022212 is 21222002312131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33382212 + ... + 33772987.

Almost surely, 213121320022212 is an apocalyptic number.

It is an amenable number.

13121320022212 is a deficient number, since it is larger than the sum of its proper divisors (9841460444988).

13121320022212 is a wasteful number, since it uses less digits than its factorization.

13121320022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67204050 (or 67204048 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13121320022212 its reverse (21222002312131), we get a palindrome (34343322334343).

The spelling of 13121320022212 in words is "thirteen trillion, one hundred twenty-one billion, three hundred twenty million, twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 48847 97694 195388 67155199 134310398 268620796 3280330005553 6560660011106 13121320022212