22225915 has 16 divisors (see below), whose sum is σ = 28984320. Its totient is φ = 16299360.

The previous prime is 22225909. The next prime is 22225927. The reversal of 22225915 is 51952222.

It is not a de Polignac number, because 22225915 - 2⁷ = 22225787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829 + ... + 6718.

It is an arithmetic number, because the mean of its divisors is an integer number (1811520).

Almost surely, 2^22225915 is an apocalyptic number.

22225915 is a deficient number, since it is larger than the sum of its proper divisors (6758405).

22225915 is a wasteful number, since it uses less digits than its factorization.

22225915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602.

The product of its digits is 3600, while the sum is 28.

The square root of 22225915 is about 4714.4368698711. The cubic root of 22225915 is about 281.1597939517.

The spelling of 22225915 in words is "twenty-two million, two hundred twenty-five thousand, nine hundred fifteen".