33113230212 has 12 divisors (see below), whose sum is σ = 77264203856. Its totient is φ = 11037743400.

The previous prime is 33113230193. The next prime is 33113230219. The reversal of 33113230212 is 21203231133.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (33113230219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1379717914 + ... + 1379717937.

Almost surely, 2^33113230212 is an apocalyptic number.

It is an amenable number.

33113230212 is an abundant number, since it is smaller than the sum of its proper divisors (44150973644).

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

33113230212 is a wasteful number, since it uses less digits than its factorization.

33113230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759435858 (or 2759435856 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 33113230212 its reverse (21203231133), we get a palindrome (54316461345).

The spelling of 33113230212 in words is "thirty-three billion, one hundred thirteen million, two hundred thirty thousand, two hundred twelve".