231504550222 has 16 divisors (see below), whose sum is σ = 378833017392. Its totient is φ = 105227288320.

The previous prime is 231504550201. The next prime is 231504550237. The reversal of 231504550222 is 222055405132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2131998 + ... + 2237950.

It is an arithmetic number, because the mean of its divisors is an integer number (23677063587).

Almost surely, 2^231504550222 is an apocalyptic number.

231504550222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231504550222 is a deficient number, since it is larger than the sum of its proper divisors (147328467170).

231504550222 is a wasteful number, since it uses less digits than its factorization.

231504550222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205283.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 231504550222 its reverse (222055405132), we get a palindrome (453559955354).

The spelling of 231504550222 in words is "two hundred thirty-one billion, five hundred four million, five hundred fifty thousand, two hundred twenty-two".