122399982 has 12 divisors (see below), whose sum is σ = 265200000. Its totient is φ = 40799988.

The previous prime is 122399941. The next prime is 122399987. The reversal of 122399982 is 289993221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122399987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3399982 + ... + 3400017.

It is an arithmetic number, because the mean of its divisors is an integer number (22100000).

Almost surely, 2^122399982 is an apocalyptic number.

122399982 is an abundant number, since it is smaller than the sum of its proper divisors (142800018).

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

122399982 is a wasteful number, since it uses less digits than its factorization.

122399982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6800007 (or 6800004 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 122399982 is about 11063.4525352622. The cubic root of 122399982 is about 496.5089917838.

The spelling of 122399982 in words is "one hundred twenty-two million, three hundred ninety-nine thousand, nine hundred eighty-two".