22102211121021 has 24 divisors (see below), whose sum is σ = 32964534580224. Its totient is φ = 14255481552480.

The previous prime is 22102211121019. The next prime is 22102211121041. The reversal of 22102211121021 is 12012111220122.

22102211121021 is a `hidden beast` number, since 2 + 210 + 221 + 1 + 1 + 210 + 21 = 666.

It is not a de Polignac number, because 22102211121021 - 2¹ = 22102211121019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22102211120985 and 22102211121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102211121041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10143301 + ... + 12128106.

It is an arithmetic number, because the mean of its divisors is an integer number (1373522274176).

Almost surely, 2^{22102211121021} is an apocalyptic number.

It is an amenable number.

22102211121021 is a deficient number, since it is larger than the sum of its proper divisors (10862323459203).

22102211121021 is a wasteful number, since it uses less digits than its factorization.

22102211121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22275001 (or 22274998 counting only the distinct ones).

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

Adding to 22102211121021 its reverse (12012111220122), we get a palindrome (34114322341143).

The spelling of 22102211121021 in words is "twenty-two trillion, one hundred two billion, two hundred eleven million, one hundred twenty-one thousand, twenty-one".