231133102221222 has 24 divisors (see below), whose sum is σ = 501929136199920. Its totient is φ = 76868867706480.

The previous prime is 231133102221209. The next prime is 231133102221283. The reversal of 231133102221222 is 222122201331132.

231133102221222 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 3 + 310 + 222 + 122 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14624966929 + ... + 14624982732.

It is an arithmetic number, because the mean of its divisors is an integer number (20913714008330).

Almost surely, 2^{231133102221222} is an apocalyptic number.

231133102221222 is an abundant number, since it is smaller than the sum of its proper divisors (270796033978698).

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

231133102221222 is a wasteful number, since it uses less digits than its factorization.

231133102221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29249950108 (or 29249950105 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 231133102221222 its reverse (222122201331132), we get a palindrome (453255303552354).

The spelling of 231133102221222 in words is "two hundred thirty-one trillion, one hundred thirty-three billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty-two".