33312122013 has 32 divisors (see below), whose sum is σ = 49345051392. Its totient is φ = 19882368000.

The previous prime is 33312122009. The next prime is 33312122023. The reversal of 33312122013 is 31022121333.

It is not a de Polignac number, because 33312122013 - 2² = 33312122009 is a prime.

It is a super-2 number, since 2×33312122013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33312122023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133863 + ... + 290763.

It is an arithmetic number, because the mean of its divisors is an integer number (1542032856).

Almost surely, 2^33312122013 is an apocalyptic number.

It is an amenable number.

33312122013 is a deficient number, since it is larger than the sum of its proper divisors (16032929379).

33312122013 is a wasteful number, since it uses less digits than its factorization.

33312122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157125.

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

Adding to 33312122013 its reverse (31022121333), we get a palindrome (64334243346).

The spelling of 33312122013 in words is "thirty-three billion, three hundred twelve million, one hundred twenty-two thousand, thirteen".