122255656 has 8 divisors (see below), whose sum is σ = 229229370. Its totient is φ = 61127824.

The previous prime is 122255647. The next prime is 122255663. The reversal of 122255656 is 656552221.

It can be written as a sum of positive squares in only one way, i.e., 119902500 + 2353156 = 10950^2 + 1534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 7640971 + ... + 7640986.

Almost surely, 2^122255656 is an apocalyptic number.

It is an amenable number.

122255656 is a deficient number, since it is larger than the sum of its proper divisors (106973714).

122255656 is a wasteful number, since it uses less digits than its factorization.

122255656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15281963 (or 15281959 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 122255656 is about 11056.9279639509. The cubic root of 122255656 is about 496.3137647930.

The spelling of 122255656 in words is "one hundred twenty-two million, two hundred fifty-five thousand, six hundred fifty-six".