422121236 has 12 divisors (see below), whose sum is σ = 739062912. Its totient is φ = 210960408.

The previous prime is 422121229. The next prime is 422121251. The reversal of 422121236 is 632121224.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15140 + ... + 32763.

It is an arithmetic number, because the mean of its divisors is an integer number (61588576).

Almost surely, 2^422121236 is an apocalyptic number.

It is an amenable number.

422121236 is a deficient number, since it is larger than the sum of its proper divisors (316941676).

422121236 is a wasteful number, since it uses less digits than its factorization.

422121236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50110 (or 50108 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 422121236 is about 20545.5892103390. The cubic root of 422121236 is about 750.1458892496.

The spelling of 422121236 in words is "four hundred twenty-two million, one hundred twenty-one thousand, two hundred thirty-six".