122112556 has 12 divisors (see below), whose sum is σ = 213817968. Its totient is φ = 61021712.

The previous prime is 122112541. The next prime is 122112587. The reversal of 122112556 is 655211221.

It is a super-2 number, since 2×122112556² = 29822952665706272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122112556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345 + ... + 15631.

It is an arithmetic number, because the mean of its divisors is an integer number (17818164).

Almost surely, 2^122112556 is an apocalyptic number.

It is an amenable number.

122112556 is a deficient number, since it is larger than the sum of its proper divisors (91705412).

122112556 is a wasteful number, since it uses less digits than its factorization.

122112556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17288 (or 17286 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 122112556 is about 11050.4550132562. The cubic root of 122112556 is about 496.1200444350.

Adding to 122112556 its reverse (655211221), we get a palindrome (777323777).

The spelling of 122112556 in words is "one hundred twenty-two million, one hundred twelve thousand, five hundred fifty-six".