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222001013231131 = 1779173955504729
BaseRepresentation
bin110010011110100010100011…
…100010001000111000011011
31002010001002102022111220000011
4302132202203202020320123
5213044231033341344011
62104053505121422351
764522021030223221
oct6236424342107033
91063032368456004
10222001013231131
1164811112461772
1220a9534a19a9b7
1396b47b49c7614
143cb6c99124b11
151a9eb50d49621
hexc9e8a3888e1b

222001013231131 has 16 divisors (see below), whose sum is σ = 239411265148800. Its totient is φ = 205104822893568.

The previous prime is 222001013231119. The next prime is 222001013231143. The reversal of 222001013231131 is 131132310100222.

It is an interprime number because it is at equal distance from previous prime (222001013231119) and next prime (222001013231143).

It is a cyclic number.

It is not a de Polignac number, because 222001013231131 - 247 = 81263524875803 is a prime.

It is a super-2 number, since 2×2220010132311312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222001013231831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477520026 + ... + 477984703.

It is an arithmetic number, because the mean of its divisors is an integer number (14963204071800).

Almost surely, 2222001013231131 is an apocalyptic number.

222001013231131 is a deficient number, since it is larger than the sum of its proper divisors (17410251917669).

222001013231131 is a wasteful number, since it uses less digits than its factorization.

222001013231131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955504998.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 222001013231131 its reverse (131132310100222), we get a palindrome (353133323331353).

The spelling of 222001013231131 in words is "two hundred twenty-two trillion, one billion, thirteen million, two hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 17 79 173 1343 2941 13667 232339 955504729 16243580393 75484873591 165302318117 1283242851047 2810139407989 13058883131243 222001013231131