13001322122 has 4 divisors (see below), whose sum is σ = 19501983186. Its totient is φ = 6500661060.

The previous prime is 13001322107. The next prime is 13001322143. The reversal of 13001322122 is 22122310031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12984830401 + 16491721 = 113951^2 + 4061^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13001322122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3250330529 + ... + 3250330532.

Almost surely, 2^13001322122 is an apocalyptic number.

13001322122 is a deficient number, since it is larger than the sum of its proper divisors (6500661064).

13001322122 is an equidigital number, since it uses as much as digits as its factorization.

13001322122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500661063.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13001322122 its reverse (22122310031), we get a palindrome (35123632153).

The spelling of 13001322122 in words is "thirteen billion, one million, three hundred twenty-two thousand, one hundred twenty-two".