22121126116 has 48 divisors (see below), whose sum is σ = 40696266240. Its totient is φ = 10501096320.

The previous prime is 22121126081. The next prime is 22121126117. The reversal of 22121126116 is 61162112122.

It is not an unprimeable number, because it can be changed into a prime (22121126117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7730526 + ... + 7733386.

It is an arithmetic number, because the mean of its divisors is an integer number (847838880).

Almost surely, 2^22121126116 is an apocalyptic number.

It is an amenable number.

22121126116 is a deficient number, since it is larger than the sum of its proper divisors (18575140124).

22121126116 is a wasteful number, since it uses less digits than its factorization.

22121126116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484 (or 3482 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

Adding to 22121126116 its reverse (61162112122), we get a palindrome (83283238238).

The spelling of 22121126116 in words is "twenty-two billion, one hundred twenty-one million, one hundred twenty-six thousand, one hundred sixteen".