22072712 has 32 divisors (see below), whose sum is σ = 43335000. Its totient is φ = 10526208.

The previous prime is 22072703. The next prime is 22072723. The reversal of 22072712 is 21727022.

It can be written as a sum of positive squares in 4 ways, for example, as 15792676 + 6280036 = 3974^2 + 2506^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20114 + ... + 21182.

Almost surely, 2^22072712 is an apocalyptic number.

It is an amenable number.

22072712 is a deficient number, since it is larger than the sum of its proper divisors (21262288).

22072712 is a wasteful number, since it uses less digits than its factorization.

22072712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 22072712 is about 4698.1604910858. The cubic root of 22072712 is about 280.5122934189.

Adding to 22072712 its reverse (21727022), we get a palindrome (43799734).

The spelling of 22072712 in words is "twenty-two million, seventy-two thousand, seven hundred twelve".