22010122121 has 12 divisors (see below), whose sum is σ = 23838590160. Its totient is φ = 20312650800.

The previous prime is 22010122111. The next prime is 22010122133. The reversal of 22010122121 is 12122101022.

It is a de Polignac number, because none of the positive numbers 2^k-22010122121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22010122096 and 22010122105.

It is not an unprimeable number, because it can be changed into a prime (22010122111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 977690 + ... + 999948.

It is an arithmetic number, because the mean of its divisors is an integer number (1986549180).

Almost surely, 2^22010122121 is an apocalyptic number.

It is an amenable number.

22010122121 is a deficient number, since it is larger than the sum of its proper divisors (1828468039).

22010122121 is a wasteful number, since it uses less digits than its factorization.

22010122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28136 (or 28123 counting only the distinct ones).

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

Adding to 22010122121 its reverse (12122101022), we get a palindrome (34132223143).

The spelling of 22010122121 in words is "twenty-two billion, ten million, one hundred twenty-two thousand, one hundred twenty-one".