22117121622 has 24 divisors (see below), whose sum is σ = 47923195320. Its totient is φ = 7371948480.

The previous prime is 22117121581. The next prime is 22117121629. The reversal of 22117121622 is 22612171122.

It is a happy number.

22117121622 is a `hidden beast` number, since 2 + 2 + 1 + 17 + 1 + 21 + 622 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22117121629) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 522529 + ... + 563267.

It is an arithmetic number, because the mean of its divisors is an integer number (1996799805).

Almost surely, 2^22117121622 is an apocalyptic number.

22117121622 is an abundant number, since it is smaller than the sum of its proper divisors (25806073698).

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

22117121622 is a wasteful number, since it uses less digits than its factorization.

22117121622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70908 (or 70905 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

Adding to 22117121622 its reverse (22612171122), we get a palindrome (44729292744).

The spelling of 22117121622 in words is "twenty-two billion, one hundred seventeen million, one hundred twenty-one thousand, six hundred twenty-two".