13331533122 has 128 divisors (see below), whose sum is σ = 32776550400. Its totient is φ = 4000425408.

The previous prime is 13331533091. The next prime is 13331533139. The reversal of 13331533122 is 22133513331.

13331533122 is a `hidden beast` number, since 1 + 3 + 3 + 3 + 1 + 533 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1628283 + ... + 1636449.

It is an arithmetic number, because the mean of its divisors is an integer number (256066800).

Almost surely, 2^13331533122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13331533122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16388275200).

13331533122 is an abundant number, since it is smaller than the sum of its proper divisors (19445017278).

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

13331533122 is a wasteful number, since it uses less digits than its factorization.

13331533122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8277 (or 8271 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The spelling of 13331533122 in words is "thirteen billion, three hundred thirty-one million, five hundred thirty-three thousand, one hundred twenty-two".