22119231 has 4 divisors (see below), whose sum is σ = 29492312. Its totient is φ = 14746152.

The previous prime is 22119217. The next prime is 22119233. The reversal of 22119231 is 13291122.

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

It is not a de Polignac number, because 22119231 - 2⁷ = 22119103 is a prime.

It is a super-2 number, since 2×22119231² = 978520760062722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22119198 and 22119207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22119233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3686536 + ... + 3686541.

It is an arithmetic number, because the mean of its divisors is an integer number (7373078).

Almost surely, 2^22119231 is an apocalyptic number.

22119231 is a deficient number, since it is larger than the sum of its proper divisors (7373081).

22119231 is an equidigital number, since it uses as much as digits as its factorization.

22119231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373080.

The product of its digits is 216, while the sum is 21.

The square root of 22119231 is about 4703.1086527955. The cubic root of 22119231 is about 280.7092182450.

The spelling of 22119231 in words is "twenty-two million, one hundred nineteen thousand, two hundred thirty-one".