22052224 has 16 divisors (see below), whose sum is σ = 43932420. Its totient is φ = 11026048.

The previous prime is 22052201. The next prime is 22052237. The reversal of 22052224 is 42225022.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86014 + ... + 86269.

Almost surely, 2^22052224 is an apocalyptic number.

It is an amenable number.

22052224 is a deficient number, since it is larger than the sum of its proper divisors (21880196).

22052224 is an equidigital number, since it uses as much as digits as its factorization.

22052224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172297 (or 172285 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22052224 is about 4695.9795570253. The cubic root of 22052224 is about 280.4254755877.

Adding to 22052224 its reverse (42225022), we get a palindrome (64277246).

The spelling of 22052224 in words is "twenty-two million, fifty-two thousand, two hundred twenty-four".