122566980 has 24 divisors (see below), whose sum is σ = 343187712. Its totient is φ = 32684512.

The previous prime is 122566949. The next prime is 122566981. The reversal of 122566980 is 89665221.

It is not an unprimeable number, because it can be changed into a prime (122566981) 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 7 ways as a sum of consecutive naturals, for example, 1021332 + ... + 1021451.

It is an arithmetic number, because the mean of its divisors is an integer number (14299488).

Almost surely, 2^122566980 is an apocalyptic number.

122566980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122566980 is an abundant number, since it is smaller than the sum of its proper divisors (220620732).

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

122566980 is a wasteful number, since it uses less digits than its factorization.

122566980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042795 (or 2042793 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 122566980 is about 11070.9972450543. The cubic root of 122566980 is about 496.7346953246.

The spelling of 122566980 in words is "one hundred twenty-two million, five hundred sixty-six thousand, nine hundred eighty".