22113567 has 40 divisors (see below), whose sum is σ = 38673536. Its totient is φ = 12328848.

The previous prime is 22113541. The next prime is 22113577. The reversal of 22113567 is 76531122.

It is a happy number.

It is not a de Polignac number, because 22113567 - 2⁶ = 22113503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 22113567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113577) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23928 + ... + 24834.

Almost surely, 2^22113567 is an apocalyptic number.

22113567 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22113567 is a deficient number, since it is larger than the sum of its proper divisors (16559969).

22113567 is an equidigital number, since it uses as much as digits as its factorization.

22113567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 960 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 22113567 is about 4702.5064593257. The cubic root of 22113567 is about 280.6852560988.

Adding to 22113567 its reverse (76531122), we get a palindrome (98644689).

It can be divided in two parts, 2211 and 3567, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 22113567 in words is "twenty-two million, one hundred thirteen thousand, five hundred sixty-seven".