31222300212212 has 96 divisors (see below), whose sum is σ = 59704597048320. Its totient is φ = 14229854945280.

The previous prime is 31222300212157. The next prime is 31222300212221. The reversal of 31222300212212 is 21221200322213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1573615412 + ... + 1573635252.

It is an arithmetic number, because the mean of its divisors is an integer number (621922885920).

Almost surely, 2^{31222300212212} is an apocalyptic number.

It is an amenable number.

31222300212212 is a deficient number, since it is larger than the sum of its proper divisors (28482296836108).

31222300212212 is a wasteful number, since it uses less digits than its factorization.

31222300212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25521 (or 25519 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31222300212212 its reverse (21221200322213), we get a palindrome (52443500534425).

The spelling of 31222300212212 in words is "thirty-one trillion, two hundred twenty-two billion, three hundred million, two hundred twelve thousand, two hundred twelve".