22212136 has 16 divisors (see below), whose sum is σ = 42773940. Its totient is φ = 10805760.

The previous prime is 22212133. The next prime is 22212187. The reversal of 22212136 is 63121222.

It can be written as a sum of positive squares in 2 ways, for example, as 17589636 + 4622500 = 4194^2 + 2150^2 .

It is not an unprimeable number, because it can be changed into a prime (22212131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37225 + ... + 37816.

Almost surely, 2^22212136 is an apocalyptic number.

It is an amenable number.

22212136 is a deficient number, since it is larger than the sum of its proper divisors (20561804).

22212136 is a wasteful number, since it uses less digits than its factorization.

22212136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75084 (or 75080 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 22212136 is about 4712.9752810725. The cubic root of 22212136 is about 281.1016800839.

Adding to 22212136 its reverse (63121222), we get a palindrome (85333358).

The spelling of 22212136 in words is "twenty-two million, two hundred twelve thousand, one hundred thirty-six".