122666920 has 32 divisors (see below), whose sum is σ = 279109800. Its totient is φ = 48514048.

The previous prime is 122666911. The next prime is 122666953. The reversal of 122666920 is 29666221.

It can be written as a sum of positive squares in 4 ways, for example, as 88021924 + 34644996 = 9382^2 + 5886^2 .

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, 13669 + ... + 20788.

Almost surely, 2^122666920 is an apocalyptic number.

122666920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122666920 is an abundant number, since it is smaller than the sum of its proper divisors (156442880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122666920 is a wasteful number, since it uses less digits than its factorization.

122666920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34557 (or 34553 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 122666920 is about 11075.5099205409. The cubic root of 122666920 is about 496.8696696289.

The spelling of 122666920 in words is "one hundred twenty-two million, six hundred sixty-six thousand, nine hundred twenty".