232366221 has 6 divisors (see below), whose sum is σ = 335640110. Its totient is φ = 154910808.

The previous prime is 232366201. The next prime is 232366231. The reversal of 232366221 is 122663232.

232366221 is a `hidden beast` number, since 2 + 3 + 2 + 36 + 622 + 1 = 666.

232366221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 231344100 + 1022121 = 15210^2 + 1011^2 .

It is not a de Polignac number, because 232366221 - 2⁷ = 232366093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232366201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12909226 + ... + 12909243.

Almost surely, 2^232366221 is an apocalyptic number.

It is an amenable number.

232366221 is a deficient number, since it is larger than the sum of its proper divisors (103273889).

232366221 is a wasteful number, since it uses less digits than its factorization.

232366221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25818475 (or 25818472 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 232366221 is about 15243.5632645389. The cubic root of 232366221 is about 614.7865132491.

The spelling of 232366221 in words is "two hundred thirty-two million, three hundred sixty-six thousand, two hundred twenty-one".