22131312199 has 4 divisors (see below), whose sum is σ = 22154535936. Its totient is φ = 22108088464.

The previous prime is 22131312193. The next prime is 22131312239. The reversal of 22131312199 is 99121313122.

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

It is a cyclic number.

It is not a de Polignac number, because 22131312199 - 2⁵ = 22131312167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131312193) 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, 11610439 + ... + 11612344.

It is an arithmetic number, because the mean of its divisors is an integer number (5538633984).

Almost surely, 2^22131312199 is an apocalyptic number.

22131312199 is a deficient number, since it is larger than the sum of its proper divisors (23223737).

22131312199 is an equidigital number, since it uses as much as digits as its factorization.

22131312199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23223736.

The product of its digits is 5832, while the sum is 34.

The spelling of 22131312199 in words is "twenty-two billion, one hundred thirty-one million, three hundred twelve thousand, one hundred ninety-nine".