33012133312 has 28 divisors (see below), whose sum is σ = 68356648656. Its totient is φ = 15788410880.

The previous prime is 33012133261. The next prime is 33012133313. The reversal of 33012133312 is 21333121033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33012133313) 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, 11211889 + ... + 11214832.

Almost surely, 2^33012133312 is an apocalyptic number.

33012133312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

33012133312 is an abundant number, since it is smaller than the sum of its proper divisors (35344515344).

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

33012133312 is a wasteful number, since it uses less digits than its factorization.

33012133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22426756 (or 22426746 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33012133312 its reverse (21333121033), we get a palindrome (54345254345).

The spelling of 33012133312 in words is "thirty-three billion, twelve million, one hundred thirty-three thousand, three hundred twelve".