122331402 has 24 divisors (see below), whose sum is σ = 267679620. Its totient is φ = 40372800.

The previous prime is 122331389. The next prime is 122331409. The reversal of 122331402 is 204133221.

It can be written as a sum of positive squares in 2 ways, for example, as 122080401 + 251001 = 11049^2 + 501^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (122331409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31827 + ... + 35462.

Almost surely, 2^122331402 is an apocalyptic number.

122331402 is an abundant number, since it is smaller than the sum of its proper divisors (145348218).

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

122331402 is a wasteful number, since it uses less digits than its factorization.

122331402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67398 (or 67395 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 122331402 is about 11060.3527068534. The cubic root of 122331402 is about 496.4162440902.

Adding to 122331402 its reverse (204133221), we get a palindrome (326464623).

The spelling of 122331402 in words is "one hundred twenty-two million, three hundred thirty-one thousand, four hundred two".