31232021222212 has 12 divisors (see below), whose sum is σ = 54656920958976. Its totient is φ = 15615758091080.

The previous prime is 31232021222183. The next prime is 31232021222239. The reversal of 31232021222212 is 21222212023213.

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 3 ways as a sum of consecutive naturals, for example, 62851588 + ... + 63346555.

It is an arithmetic number, because the mean of its divisors is an integer number (4554743413248).

Almost surely, 2^{31232021222212} is an apocalyptic number.

It is an amenable number.

31232021222212 is a deficient number, since it is larger than the sum of its proper divisors (23424899736764).

31232021222212 is a wasteful number, since it uses less digits than its factorization.

31232021222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126260018 (or 126260016 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31232021222212 its reverse (21222212023213), we get a palindrome (52454233245425).

The spelling of 31232021222212 in words is "thirty-one trillion, two hundred thirty-two billion, twenty-one million, two hundred twenty-two thousand, two hundred twelve".