22252002636 has 24 divisors (see below), whose sum is σ = 51932661760. Its totient is φ = 7415716752.

The previous prime is 22252002629. The next prime is 22252002653. The reversal of 22252002636 is 63620025222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144196 + ... + 255531.

Almost surely, 2^22252002636 is an apocalyptic number.

It is an amenable number.

22252002636 is an abundant number, since it is smaller than the sum of its proper divisors (29680659124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22252002636 is a wasteful number, since it uses less digits than its factorization.

22252002636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404373 (or 404371 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 22252002636 its reverse (63620025222), we get a palindrome (85872027858).

The spelling of 22252002636 in words is "twenty-two billion, two hundred fifty-two million, two thousand, six hundred thirty-six".