22245512 has 16 divisors (see below), whose sum is σ = 42016860. Its totient is φ = 11041024.

The previous prime is 22245497. The next prime is 22245521. The reversal of 22245512 is 21554222.

It can be written as a sum of positive squares in 2 ways, for example, as 22221796 + 23716 = 4714^2 + 154^2 .

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, 9053 + ... + 11244.

Almost surely, 2^22245512 is an apocalyptic number.

It is an amenable number.

22245512 is a deficient number, since it is larger than the sum of its proper divisors (19771348).

22245512 is a wasteful number, since it uses less digits than its factorization.

22245512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20440 (or 20436 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 22245512 is about 4716.5148149879. The cubic root of 22245512 is about 281.2424042722.

Adding to 22245512 its reverse (21554222), we get a palindrome (43799734).

The spelling of 22245512 in words is "twenty-two million, two hundred forty-five thousand, five hundred twelve".