251222222222152 has 16 divisors (see below), whose sum is σ = 474637404582000. Its totient is φ = 124652247666960.

The previous prime is 251222222222117. The next prime is 251222222222159.

251222222222152 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×251222222222152² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (251222222222159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119857929402 + ... + 119857931497.

It is an arithmetic number, because the mean of its divisors is an integer number (29664837786375).

Almost surely, 2^{251222222222152} is an apocalyptic number.

It is an amenable number.

251222222222152 is a deficient number, since it is larger than the sum of its proper divisors (223415182359848).

251222222222152 is a wasteful number, since it uses less digits than its factorization.

251222222222152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239715861036 (or 239715861032 counting only the distinct ones).

The product of its digits is 51200, while the sum is 34.

The spelling of 251222222222152 in words is "two hundred fifty-one trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred fifty-two".