122239881 has 8 divisors (see below), whose sum is σ = 181096160. Its totient is φ = 81493236.

The previous prime is 122239867. The next prime is 122239883. The reversal of 122239881 is 188932221.

It is not a de Polignac number, because 122239881 - 2¹¹ = 122237833 is a prime.

It is a super-2 number, since 2×122239881² = 29885177013788322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122239883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2263675 + ... + 2263728.

It is an arithmetic number, because the mean of its divisors is an integer number (22637020).

Almost surely, 2^122239881 is an apocalyptic number.

It is an amenable number.

122239881 is a deficient number, since it is larger than the sum of its proper divisors (58856279).

122239881 is an equidigital number, since it uses as much as digits as its factorization.

122239881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4527412 (or 4527406 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 122239881 is about 11056.2145872808. The cubic root of 122239881 is about 496.2924169425.

The spelling of 122239881 in words is "one hundred twenty-two million, two hundred thirty-nine thousand, eight hundred eighty-one".