22018867199 has 4 divisors (see below), whose sum is σ = 25164419664. Its totient is φ = 18873314736.

The previous prime is 22018867163. The next prime is 22018867217. The reversal of 22018867199 is 99176881022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99176881022 = 2 ⋅49588440511.

It is a cyclic number.

It is not a de Polignac number, because 22018867199 - 2²⁸ = 21750431743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22018867199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22018867699) 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, 1572776222 + ... + 1572776235.

It is an arithmetic number, because the mean of its divisors is an integer number (6291104916).

Almost surely, 2^22018867199 is an apocalyptic number.

22018867199 is a deficient number, since it is larger than the sum of its proper divisors (3145552465).

22018867199 is an equidigital number, since it uses as much as digits as its factorization.

22018867199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145552464.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 22018867199 in words is "twenty-two billion, eighteen million, eight hundred sixty-seven thousand, one hundred ninety-nine".