122520056 has 32 divisors (see below), whose sum is σ = 242576400. Its totient is φ = 57853440.

The previous prime is 122520031. The next prime is 122520107. The reversal of 122520056 is 650025221.

It is a super-2 number, since 2×122520056² = 30022328244486272, which 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 7 ways as a sum of consecutive naturals, for example, 55616 + ... + 57776.

Almost surely, 2^122520056 is an apocalyptic number.

It is an amenable number.

122520056 is a deficient number, since it is larger than the sum of its proper divisors (120056344).

122520056 is a wasteful number, since it uses less digits than its factorization.

122520056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2555 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 122520056 is about 11068.8778112327. The cubic root of 122520056 is about 496.6712966452.

Adding to 122520056 its reverse (650025221), we get a palindrome (772545277).

The spelling of 122520056 in words is "one hundred twenty-two million, five hundred twenty thousand, fifty-six".