22500224 has 16 divisors (see below), whose sum is σ = 44824920. Its totient is φ = 11250048.

The previous prime is 22500211. The next prime is 22500229. The reversal of 22500224 is 42200522.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22500229) 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 as a sum of consecutive naturals, namely, 87764 + ... + 88019.

Almost surely, 2^22500224 is an apocalyptic number.

It is an amenable number.

22500224 is a deficient number, since it is larger than the sum of its proper divisors (22324696).

22500224 is an equidigital number, since it uses as much as digits as its factorization.

22500224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175797 (or 175785 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22500224 is about 4743.4401018670. The cubic root of 22500224 is about 282.3117455148.

Adding to 22500224 its reverse (42200522), we get a palindrome (64700746).

The spelling of 22500224 in words is "twenty-two million, five hundred thousand, two hundred twenty-four".