22122736 has 10 divisors (see below), whose sum is σ = 42862832. Its totient is φ = 11061360.

The previous prime is 22122733. The next prime is 22122743. The reversal of 22122736 is 63722122.

It is a self number, because there is not a number n which added to its sum of digits gives 22122736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691320 + ... + 691351.

Almost surely, 2^22122736 is an apocalyptic number.

It is an amenable number.

22122736 is a deficient number, since it is larger than the sum of its proper divisors (20740096).

22122736 is a wasteful number, since it uses less digits than its factorization.

22122736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382679 (or 1382673 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 22122736 is about 4703.4812639151. The cubic root of 22122736 is about 280.7240444664.

Adding to 22122736 its reverse (63722122), we get a palindrome (85844858).

The spelling of 22122736 in words is "twenty-two million, one hundred twenty-two thousand, seven hundred thirty-six".