22216275 has 84 divisors (see below), whose sum is σ = 43912368. Its totient is φ = 11119680.

The previous prime is 22216267. The next prime is 22216283. The reversal of 22216275 is 57261222.

It is an interprime number because it is at equal distance from previous prime (22216267) and next prime (22216283).

It is not a de Polignac number, because 22216275 - 2³ = 22216267 is a prime.

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

Its product of digits (3360) is a multiple of the sum of its prime divisors (84).

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 419149 + ... + 419201.

Almost surely, 2^22216275 is an apocalyptic number.

22216275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22216275 is a deficient number, since it is larger than the sum of its proper divisors (21696093).

22216275 is an equidigital number, since it uses as much as digits as its factorization.

22216275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 84 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 22216275 is about 4713.4143675259. The cubic root of 22216275 is about 281.1191391221.

Adding to 22216275 its reverse (57261222), we get a palindrome (79477497).

The spelling of 22216275 in words is "twenty-two million, two hundred sixteen thousand, two hundred seventy-five".