22110211121 has 16 divisors (see below), whose sum is σ = 23274276480. Its totient is φ = 20963733120.

The previous prime is 22110211111. The next prime is 22110211129. The reversal of 22110211121 is 12111201122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22110211121 is a prime.

It is a super-2 number, since 2×22110211121² (a number of 21 digits) contains 22 as substring.

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 = 22110211096 and 22110211105.

It is not an unprimeable number, because it can be changed into a prime (22110211129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1450781 + ... + 1465941.

It is an arithmetic number, because the mean of its divisors is an integer number (1454642280).

Almost surely, 2^22110211121 is an apocalyptic number.

It is an amenable number.

22110211121 is a deficient number, since it is larger than the sum of its proper divisors (1164065359).

22110211121 is a wasteful number, since it uses less digits than its factorization.

22110211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15736.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22110211121 its reverse (12111201122), we get a palindrome (34221412243).

Subtracting from 22110211121 its reverse (12111201122), we obtain a palindrome (9999009999).

The spelling of 22110211121 in words is "twenty-two billion, one hundred ten million, two hundred eleven thousand, one hundred twenty-one".