22044225 has 48 divisors (see below), whose sum is σ = 42060800. Its totient is φ = 9979200.

The previous prime is 22044221. The next prime is 22044233. The reversal of 22044225 is 52244022.

It is not a de Polignac number, because 22044225 - 2² = 22044221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22044221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104370 + ... + 104580.

Almost surely, 2^22044225 is an apocalyptic number.

22044225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22044225 is a deficient number, since it is larger than the sum of its proper divisors (20016575).

22044225 is a wasteful number, since it uses less digits than its factorization.

22044225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 22044225 is about 4695.1277937879. The cubic root of 22044225 is about 280.3915652566.

Adding to 22044225 its reverse (52244022), we get a palindrome (74288247).

The spelling of 22044225 in words is "twenty-two million, forty-four thousand, two hundred twenty-five".