122656556 has 12 divisors (see below), whose sum is σ = 234162600. Its totient is φ = 55752960.

The previous prime is 122656549. The next prime is 122656577. The reversal of 122656556 is 655656221.

It is a happy number.

It is a super-2 number, since 2×122656556² = 30089261459562272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393781 + ... + 1393868.

It is an arithmetic number, because the mean of its divisors is an integer number (19513550).

Almost surely, 2^122656556 is an apocalyptic number.

It is an amenable number.

122656556 is a deficient number, since it is larger than the sum of its proper divisors (111506044).

122656556 is a wasteful number, since it uses less digits than its factorization.

122656556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787664 (or 2787662 counting only the distinct ones).

The product of its digits is 108000, while the sum is 38.

The square root of 122656556 is about 11075.0420315230. The cubic root of 122656556 is about 496.8556759016.

The spelling of 122656556 in words is "one hundred twenty-two million, six hundred fifty-six thousand, five hundred fifty-six".