22252421624 has 16 divisors (see below), whose sum is σ = 41728326120. Its totient is φ = 11124868000.

The previous prime is 22252421623. The next prime is 22252421657. The reversal of 22252421624 is 42612425222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22252421623) 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, 95594 + ... + 231609.

Almost surely, 2^22252421624 is an apocalyptic number.

It is an amenable number.

22252421624 is a deficient number, since it is larger than the sum of its proper divisors (19475904496).

22252421624 is a wasteful number, since it uses less digits than its factorization.

22252421624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335710 (or 335706 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

Adding to 22252421624 its reverse (42612425222), we get a palindrome (64864846846).

The spelling of 22252421624 in words is "twenty-two billion, two hundred fifty-two million, four hundred twenty-one thousand, six hundred twenty-four".