22258885221 has 12 divisors (see below), whose sum is σ = 32158540960. Its totient is φ = 14836110120.

The previous prime is 22258885163. The next prime is 22258885261. The reversal of 22258885221 is 12258885222.

It is a happy number.

22258885221 is a `hidden beast` number, since 22 + 25 + 8 + 88 + 522 + 1 = 666.

It is not a de Polignac number, because 22258885221 - 2⁶ = 22258885157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22258885261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217015 + ... + 302676.

Almost surely, 2^22258885221 is an apocalyptic number.

It is an amenable number.

22258885221 is a deficient number, since it is larger than the sum of its proper divisors (9899655739).

22258885221 is a wasteful number, since it uses less digits than its factorization.

22258885221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524456 (or 524453 counting only the distinct ones).

The product of its digits is 409600, while the sum is 45.

Subtracting from 22258885221 its reverse (12258885222), we obtain a palindrome (9999999999).

The spelling of 22258885221 in words is "twenty-two billion, two hundred fifty-eight million, eight hundred eighty-five thousand, two hundred twenty-one".