122291868 has 48 divisors (see below), whose sum is σ = 290707200. Its totient is φ = 40005504.

The previous prime is 122291861. The next prime is 122291879. The reversal of 122291868 is 868192221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122291861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197896 + ... + 198512.

It is an arithmetic number, because the mean of its divisors is an integer number (6056400).

Almost surely, 2^122291868 is an apocalyptic number.

It is an amenable number.

122291868 is an abundant number, since it is smaller than the sum of its proper divisors (168415332).

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

122291868 is a wasteful number, since it uses less digits than its factorization.

122291868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 904 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 122291868 is about 11058.5653680756. The cubic root of 122291868 is about 496.3627624985.

The spelling of 122291868 in words is "one hundred twenty-two million, two hundred ninety-one thousand, eight hundred sixty-eight".