122919112 has 32 divisors (see below), whose sum is σ = 249717600. Its totient is φ = 56496384.

The previous prime is 122919103. The next prime is 122919127. The reversal of 122919112 is 211919221.

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 in 7 ways as a sum of consecutive naturals, for example, 4662 + ... + 16357.

It is an arithmetic number, because the mean of its divisors is an integer number (7803675).

Almost surely, 2^122919112 is an apocalyptic number.

It is an amenable number.

122919112 is an abundant number, since it is smaller than the sum of its proper divisors (126798488).

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

122919112 is a wasteful number, since it uses less digits than its factorization.

122919112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21085 (or 21081 counting only the distinct ones).

The product of its digits is 648, while the sum is 28.

The square root of 122919112 is about 11086.8891939985. The cubic root of 122919112 is about 497.2099427868.

The spelling of 122919112 in words is "one hundred twenty-two million, nine hundred nineteen thousand, one hundred twelve".