22110211122021 has 32 divisors (see below), whose sum is σ = 35738763110400. Its totient is φ = 13398219739440.

The previous prime is 22110211122019. The next prime is 22110211122037. The reversal of 22110211122021 is 12022111201122.

22110211122021 is a `hidden beast` number, since 2 + 211 + 0 + 211 + 1 + 220 + 21 = 666.

It is not a de Polignac number, because 22110211122021 - 2¹ = 22110211122019 is a prime.

It is a super-2 number, since 2×22110211122021² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22110211121985 and 22110211122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110211122001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3210061 + ... + 7384098.

It is an arithmetic number, because the mean of its divisors is an integer number (1116836347200).

Almost surely, 2^{22110211122021} is an apocalyptic number.

It is an amenable number.

22110211122021 is a deficient number, since it is larger than the sum of its proper divisors (13628551988379).

22110211122021 is a wasteful number, since it uses less digits than its factorization.

22110211122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601206 (or 10601200 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22110211122021 its reverse (12022111201122), we get a palindrome (34132322323143).

The spelling of 22110211122021 in words is "twenty-two trillion, one hundred ten billion, two hundred eleven million, one hundred twenty-two thousand, twenty-one".