232221855 has 16 divisors (see below), whose sum is σ = 371889504. Its totient is φ = 123740160.

The previous prime is 232221841. The next prime is 232221863. The reversal of 232221855 is 558122232.

It is not a de Polignac number, because 232221855 - 2⁶ = 232221791 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11895 + ... + 24615.

It is an arithmetic number, because the mean of its divisors is an integer number (23243094).

Almost surely, 2^232221855 is an apocalyptic number.

232221855 is a deficient number, since it is larger than the sum of its proper divisors (139667649).

232221855 is a wasteful number, since it uses less digits than its factorization.

232221855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13946.

The product of its digits is 9600, while the sum is 30.

The square root of 232221855 is about 15238.8272186543. The cubic root of 232221855 is about 614.6591673490.

The spelling of 232221855 in words is "two hundred thirty-two million, two hundred twenty-one thousand, eight hundred fifty-five".