22224155 has 8 divisors (see below), whose sum is σ = 26944512. Its totient is φ = 17595648.

The previous prime is 22224149. The next prime is 22224203. The reversal of 22224155 is 55142222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22224155 - 2⁸ = 22223899 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 22224155.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22427 + ... + 23396.

It is an arithmetic number, because the mean of its divisors is an integer number (3368064).

Almost surely, 2^22224155 is an apocalyptic number.

22224155 is a deficient number, since it is larger than the sum of its proper divisors (4720357).

22224155 is an equidigital number, since it uses as much as digits as its factorization.

22224155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45925.

The product of its digits is 1600, while the sum is 23.

The square root of 22224155 is about 4714.2502054940. The cubic root of 22224155 is about 281.1523723705.

Adding to 22224155 its reverse (55142222), we get a palindrome (77366377).

The spelling of 22224155 in words is "twenty-two million, two hundred twenty-four thousand, one hundred fifty-five".