22119879 has 4 divisors (see below), whose sum is σ = 29493176. Its totient is φ = 14746584.

The previous prime is 22119871. The next prime is 22119913. The reversal of 22119879 is 97891122.

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

It is not a de Polignac number, because 22119879 - 2³ = 22119871 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 (22119871) 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, 3686644 + ... + 3686649.

It is an arithmetic number, because the mean of its divisors is an integer number (7373294).

Almost surely, 2^22119879 is an apocalyptic number.

22119879 is a deficient number, since it is larger than the sum of its proper divisors (7373297).

22119879 is an equidigital number, since it uses as much as digits as its factorization.

22119879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373296.

The product of its digits is 18144, while the sum is 39.

The square root of 22119879 is about 4703.1775428959. The cubic root of 22119879 is about 280.7119594162.

It can be divided in two parts, 2211 and 9879, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 22119879 in words is "twenty-two million, one hundred nineteen thousand, eight hundred seventy-nine".