22102221424 has 20 divisors (see below), whose sum is σ = 45342057744. Its totient is φ = 10401045248.

The previous prime is 22102221397. The next prime is 22102221437. The reversal of 22102221424 is 42412220122.

It is a junction number, because it is equal to n+sod(n) for n = 22102221395 and 22102221404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40628812 + ... + 40629355.

Almost surely, 2^22102221424 is an apocalyptic number.

It is an amenable number.

22102221424 is an abundant number, since it is smaller than the sum of its proper divisors (23239836320).

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

22102221424 is a wasteful number, since it uses less digits than its factorization.

22102221424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81258192 (or 81258186 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22102221424 its reverse (42412220122), we get a palindrome (64514441546).

The spelling of 22102221424 in words is "twenty-two billion, one hundred two million, two hundred twenty-one thousand, four hundred twenty-four".