22225072 has 20 divisors (see below), whose sum is σ = 43261120. Its totient is φ = 11060928.

The previous prime is 22225043. The next prime is 22225081. The reversal of 22225072 is 27052222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454 + ... + 6682.

It is an arithmetic number, because the mean of its divisors is an integer number (2163056).

Almost surely, 2^22225072 is an apocalyptic number.

It is an amenable number.

22225072 is a deficient number, since it is larger than the sum of its proper divisors (21036048).

22225072 is a wasteful number, since it uses less digits than its factorization.

22225072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6460 (or 6454 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 22225072 is about 4714.3474627991. The cubic root of 22225072 is about 281.1562392319.

Adding to 22225072 its reverse (27052222), we get a palindrome (49277294).

The spelling of 22225072 in words is "twenty-two million, two hundred twenty-five thousand, seventy-two".