231021102212222 has 24 divisors (see below), whose sum is σ = 403109767472040. Its totient is φ = 99008671038480.

The previous prime is 231021102212179. The next prime is 231021102212261. The reversal of 231021102212222 is 222212201120132.

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, 22558097 + ... + 31159427.

It is an arithmetic number, because the mean of its divisors is an integer number (16796240311335).

Almost surely, 2^{231021102212222} is an apocalyptic number.

231021102212222 is a deficient number, since it is larger than the sum of its proper divisors (172088665259818).

231021102212222 is a wasteful number, since it uses less digits than its factorization.

231021102212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8875416 (or 8875409 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 231021102212222 its reverse (222212201120132), we get a palindrome (453233303332354).

The spelling of 231021102212222 in words is "two hundred thirty-one trillion, twenty-one billion, one hundred two million, two hundred twelve thousand, two hundred twenty-two".