22113131999 has 4 divisors (see below), whose sum is σ = 25272150864. Its totient is φ = 18954113136.

The previous prime is 22113131951. The next prime is 22113132011. The reversal of 22113131999 is 99913131122.

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

It is not a de Polignac number, because 22113131999 - 2⁸ = 22113131743 is a prime.

It is a super-3 number, since 3×22113131999³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113130999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1579509422 + ... + 1579509435.

It is an arithmetic number, because the mean of its divisors is an integer number (6318037716).

Almost surely, 2^22113131999 is an apocalyptic number.

22113131999 is a deficient number, since it is larger than the sum of its proper divisors (3159018865).

22113131999 is an equidigital number, since it uses as much as digits as its factorization.

22113131999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159018864.

The product of its digits is 26244, while the sum is 41.

The spelling of 22113131999 in words is "twenty-two billion, one hundred thirteen million, one hundred thirty-one thousand, nine hundred ninety-nine".