33121100232012 has 48 divisors (see below), whose sum is σ = 83381220171872. Its totient is φ = 10172270200320.

The previous prime is 33121100231929. The next prime is 33121100232023. The reversal of 33121100232012 is 21023200112133.

It is a self number, because there is not a number n which added to its sum of digits gives 33121100232012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196139953 + ... + 196308744.

Almost surely, 2^{33121100232012} is an apocalyptic number.

It is an amenable number.

33121100232012 is an abundant number, since it is smaller than the sum of its proper divisors (50260119939860).

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

33121100232012 is a wasteful number, since it uses less digits than its factorization.

33121100232012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392449258 (or 392449256 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 33121100232012 its reverse (21023200112133), we get a palindrome (54144300344145).

The spelling of 33121100232012 in words is "thirty-three trillion, one hundred twenty-one billion, one hundred million, two hundred thirty-two thousand, twelve".