22122110021 has 16 divisors (see below), whose sum is σ = 24210577728. Its totient is φ = 20046652800.

The previous prime is 22122109973. The next prime is 22122110027. The reversal of 22122110021 is 12001122122.

It is a cyclic number.

It is not a de Polignac number, because 22122110021 - 2⁶ = 22122109957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22122109978 and 22122110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122110027) 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, 4961225 + ... + 4965681.

It is an arithmetic number, because the mean of its divisors is an integer number (1513161108).

Almost surely, 2^22122110021 is an apocalyptic number.

It is an amenable number.

22122110021 is a deficient number, since it is larger than the sum of its proper divisors (2088467707).

22122110021 is a wasteful number, since it uses less digits than its factorization.

22122110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5812.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22122110021 its reverse (12001122122), we get a palindrome (34123232143).

The spelling of 22122110021 in words is "twenty-two billion, one hundred twenty-two million, one hundred ten thousand, twenty-one".