251222882512 has 60 divisors (see below), whose sum is σ = 574802832288. Its totient is φ = 104193777600.

The previous prime is 251222882507. The next prime is 251222882567. The reversal of 251222882512 is 215288222152.

It is a super-2 number, since 2×251222882512² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 1059414 + ... + 1274677.

Almost surely, 2^251222882512 is an apocalyptic number.

It is an amenable number.

251222882512 is an abundant number, since it is smaller than the sum of its proper divisors (323579949776).

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

251222882512 is a wasteful number, since it uses less digits than its factorization.

251222882512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334168 (or 2334131 counting only the distinct ones).

The product of its digits is 102400, while the sum is 40.

The spelling of 251222882512 in words is "two hundred fifty-one billion, two hundred twenty-two million, eight hundred eighty-two thousand, five hundred twelve".