31320200122212 has 24 divisors (see below), whose sum is σ = 73082821383712. Its totient is φ = 10439730360000.

The previous prime is 31320200122129. The next prime is 31320200122213. The reversal of 31320200122212 is 21222100202313.

It is not an unprimeable number, because it can be changed into a prime (31320200122213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41655289 + ... + 42400512.

Almost surely, 2^{31320200122212} is an apocalyptic number.

It is an amenable number.

31320200122212 is an abundant number, since it is smaller than the sum of its proper divisors (41762621261500).

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

31320200122212 is a wasteful number, since it uses less digits than its factorization.

31320200122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84086859 (or 84086857 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31320200122212 its reverse (21222100202313), we get a palindrome (52542300324525).

The spelling of 31320200122212 in words is "thirty-one trillion, three hundred twenty billion, two hundred million, one hundred twenty-two thousand, two hundred twelve".