22225995 has 48 divisors (see below), whose sum is σ = 43610112. Its totient is φ = 10769760.

The previous prime is 22225979. The next prime is 22225997. The reversal of 22225995 is 59952222.

It is not a de Polignac number, because 22225995 - 2⁴ = 22225979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22225997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12534 + ... + 14196.

It is an arithmetic number, because the mean of its divisors is an integer number (908544).

Almost surely, 2^22225995 is an apocalyptic number.

22225995 is a deficient number, since it is larger than the sum of its proper divisors (21384117).

22225995 is a wasteful number, since it uses less digits than its factorization.

22225995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 1682 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 22225995 is about 4714.4453544399. The cubic root of 22225995 is about 281.1601312870.

It can be divided in two parts, 22225 and 995, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22225995 in words is "twenty-two million, two hundred twenty-five thousand, nine hundred ninety-five".