13202220231 has 12 divisors (see below), whose sum is σ = 19585276152. Its totient is φ = 8563602096.

The previous prime is 13202220223. The next prime is 13202220233.

13202220231 is a `hidden beast` number, since 13 + 202 + 220 + 231 = 666.

13202220231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13202220231 - 2³ = 13202220223 is a prime.

It is a super-2 number, since 2×13202220231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13202220233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19822821 + ... + 19823486.

It is an arithmetic number, because the mean of its divisors is an integer number (1632106346).

Almost surely, 2^13202220231 is an apocalyptic number.

13202220231 is a deficient number, since it is larger than the sum of its proper divisors (6383055921).

13202220231 is a wasteful number, since it uses less digits than its factorization.

13202220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39646350 (or 39646347 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The spelling of 13202220231 in words is "thirteen billion, two hundred two million, two hundred twenty thousand, two hundred thirty-one".