33112120122012 has 24 divisors (see below), whose sum is σ = 77272799798656. Its totient is φ = 11035775348208.

The previous prime is 33112120121981. The next prime is 33112120122013. The reversal of 33112120122012 is 21022102121133.

It is a self number, because there is not a number n which added to its sum of digits gives 33112120122012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33112120122013) 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, 199666888 + ... + 199832655.

Almost surely, 2^{33112120122012} is an apocalyptic number.

It is an amenable number.

33112120122012 is an abundant number, since it is smaller than the sum of its proper divisors (44160679676644).

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

33112120122012 is a wasteful number, since it uses less digits than its factorization.

33112120122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399506457 (or 399506455 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 33112120122012 its reverse (21022102121133), we get a palindrome (54134222243145).

The spelling of 33112120122012 in words is "thirty-three trillion, one hundred twelve billion, one hundred twenty million, one hundred twenty-two thousand, twelve".