22111139 has 4 divisors (see below), whose sum is σ = 22441224. Its totient is φ = 21781056.

The previous prime is 22111127. The next prime is 22111151. The reversal of 22111139 is 93111122.

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

It is an interprime number because it is at equal distance from previous prime (22111127) and next prime (22111151).

It is a cyclic number.

It is not a de Polignac number, because 22111139 - 2⁸ = 22110883 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 22111139.

It is not an unprimeable number, because it can be changed into a prime (22111109) 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, 164942 + ... + 165075.

It is an arithmetic number, because the mean of its divisors is an integer number (5610306).

Almost surely, 2^22111139 is an apocalyptic number.

22111139 is a deficient number, since it is larger than the sum of its proper divisors (330085).

22111139 is an equidigital number, since it uses as much as digits as its factorization.

22111139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330084.

The product of its digits is 108, while the sum is 20.

The square root of 22111139 is about 4702.2482920407. The cubic root of 22111139 is about 280.6749829372.

It can be divided in two parts, 2211113 and 9, that added together give a palindrome (2211122).

The spelling of 22111139 in words is "twenty-two million, one hundred eleven thousand, one hundred thirty-nine".