2012223131312 has 40 divisors (see below), whose sum is σ = 4033595375040. Its totient is φ = 971303477760.

The previous prime is 2012223131257. The next prime is 2012223131329. The reversal of 2012223131312 is 2131313222102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3749612 + ... + 4252532.

It is an arithmetic number, because the mean of its divisors is an integer number (100839884376).

Almost surely, 2^{2012223131312} is an apocalyptic number.

It is an amenable number.

2012223131312 is an abundant number, since it is smaller than the sum of its proper divisors (2021372243728).

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

2012223131312 is a wasteful number, since it uses less digits than its factorization.

2012223131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511581 (or 511575 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2012223131312 its reverse (2131313222102), we get a palindrome (4143536353414).

The spelling of 2012223131312 in words is "two trillion, twelve billion, two hundred twenty-three million, one hundred thirty-one thousand, three hundred twelve".