31799101220012 has 18 divisors (see below), whose sum is σ = 64733884626852. Its totient is φ = 13628186237064.

The previous prime is 31799101219883. The next prime is 31799101220017. The reversal of 31799101220012 is 21002210199713.

It is a happy number.

It is a super-2 number, since 2×31799101220012² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31799101220017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81120155978 + ... + 81120156369.

It is an arithmetic number, because the mean of its divisors is an integer number (3596326923714).

Almost surely, 2^{31799101220012} is an apocalyptic number.

It is an amenable number.

31799101220012 is an abundant number, since it is smaller than the sum of its proper divisors (32934783406840).

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

31799101220012 is a wasteful number, since it uses less digits than its factorization.

31799101220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162240312365 (or 162240312356 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 31799101220012 in words is "thirty-one trillion, seven hundred ninety-nine billion, one hundred one million, two hundred twenty thousand, twelve".