13222012113 has 6 divisors (see below), whose sum is σ = 19098461954. Its totient is φ = 8814674736.

The previous prime is 13222012109. The next prime is 13222012121. The reversal of 13222012113 is 31121022231.

It can be written as a sum of positive squares in only one way, i.e., 12040233984 + 1181778129 = 109728^2 + 34377^2 .

It is not a de Polignac number, because 13222012113 - 2² = 13222012109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13222012183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 734556220 + ... + 734556237.

Almost surely, 2^13222012113 is an apocalyptic number.

It is an amenable number.

13222012113 is a deficient number, since it is larger than the sum of its proper divisors (5876449841).

13222012113 is a wasteful number, since it uses less digits than its factorization.

13222012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469112463 (or 1469112460 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13222012113 its reverse (31121022231), we get a palindrome (44343034344).

The spelling of 13222012113 in words is "thirteen billion, two hundred twenty-two million, twelve thousand, one hundred thirteen".