22551515131 has 12 divisors (see below), whose sum is σ = 23856293664. Its totient is φ = 21314876400.

The previous prime is 22551515123. The next prime is 22551515149. The reversal of 22551515131 is 13151515522.

It is not a de Polignac number, because 22551515131 - 2³ = 22551515123 is a prime.

It is a super-2 number, since 2×22551515131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22551515093 and 22551515102.

It is not an unprimeable number, because it can be changed into a prime (22551512131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83121 + ... + 228061.

It is an arithmetic number, because the mean of its divisors is an integer number (1988024472).

Almost surely, 2^22551515131 is an apocalyptic number.

22551515131 is a deficient number, since it is larger than the sum of its proper divisors (1304778533).

22551515131 is a wasteful number, since it uses less digits than its factorization.

22551515131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145410 (or 145391 counting only the distinct ones).

The product of its digits is 7500, while the sum is 31.

The spelling of 22551515131 in words is "twenty-two billion, five hundred fifty-one million, five hundred fifteen thousand, one hundred thirty-one".