22121110122 has 16 divisors (see below), whose sum is σ = 44267393280. Its totient is φ = 7369507872.

The previous prime is 22121110097. The next prime is 22121110127. The reversal of 22121110122 is 22101112122.

It is not an unprimeable number, because it can be changed into a prime (22121110127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037443 + ... + 1058550.

It is an arithmetic number, because the mean of its divisors is an integer number (2766712080).

Almost surely, 2^22121110122 is an apocalyptic number.

22121110122 is an abundant number, since it is smaller than the sum of its proper divisors (22146283158).

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

22121110122 is a wasteful number, since it uses less digits than its factorization.

22121110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097757.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22121110122 its reverse (22101112122), we get a palindrome (44222222244).

The spelling of 22121110122 in words is "twenty-two billion, one hundred twenty-one million, one hundred ten thousand, one hundred twenty-two".