231212022202 has 24 divisors (see below), whose sum is σ = 403486253856. Its totient is φ = 99079846488.

The previous prime is 231212022187. The next prime is 231212022203. The reversal of 231212022202 is 202220212132.

It is a self number, because there is not a number n which added to its sum of digits gives 231212022202.

It is not an unprimeable number, because it can be changed into a prime (231212022203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787123 + ... + 1040185.

It is an arithmetic number, because the mean of its divisors is an integer number (16811927244).

Almost surely, 2^231212022202 is an apocalyptic number.

231212022202 is a deficient number, since it is larger than the sum of its proper divisors (172274231654).

231212022202 is a wasteful number, since it uses less digits than its factorization.

231212022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262402 (or 262395 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 231212022202 its reverse (202220212132), we get a palindrome (433432234334).

The spelling of 231212022202 in words is "two hundred thirty-one billion, two hundred twelve million, twenty-two thousand, two hundred two".