122055777 has 6 divisors (see below), whose sum is σ = 176302802. Its totient is φ = 81370512.

The previous prime is 122055749. The next prime is 122055793. The reversal of 122055777 is 777550221.

122055777 is a `hidden beast` number, since 12 + 20 + 557 + 77 = 666.

It can be written as a sum of positive squares in only one way, i.e., 111323601 + 10732176 = 10551^2 + 3276^2 .

It is not a de Polignac number, because 122055777 - 2¹⁰ = 122054753 is a prime.

It is a super-2 number, since 2×122055777² = 29795225398147458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122055727) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 6780868 + ... + 6780885.

Almost surely, 2^122055777 is an apocalyptic number.

It is an amenable number.

122055777 is a deficient number, since it is larger than the sum of its proper divisors (54247025).

122055777 is a wasteful number, since it uses less digits than its factorization.

122055777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13561759 (or 13561756 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The square root of 122055777 is about 11047.8856348172. The cubic root of 122055777 is about 496.0431384285.

The spelling of 122055777 in words is "one hundred twenty-two million, fifty-five thousand, seven hundred seventy-seven".