22120372 has 12 divisors (see below), whose sum is σ = 38925796. Its totient is φ = 10998720.

The previous prime is 22120367. The next prime is 22120381. The reversal of 22120372 is 27302122.

It can be written as a sum of positive squares in 2 ways, for example, as 1653796 + 20466576 = 1286^2 + 4524^2 .

It is a congruent 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, 14553 + ... + 16000.

Almost surely, 2^22120372 is an apocalyptic number.

It is an amenable number.

22120372 is a deficient number, since it is larger than the sum of its proper divisors (16805424).

22120372 is a wasteful number, since it uses less digits than its factorization.

22120372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30738 (or 30736 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22120372 is about 4703.2299539784. The cubic root of 22120372 is about 280.7140448702.

Adding to 22120372 its reverse (27302122), we get a palindrome (49422494).

The spelling of 22120372 in words is "twenty-two million, one hundred twenty thousand, three hundred seventy-two".