22112111201 has 4 divisors (see below), whose sum is σ = 22117800900. Its totient is φ = 22106421504.

The previous prime is 22112111167. The next prime is 22112111207. The reversal of 22112111201 is 10211121122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16113763600 + 5998347601 = 126940^2 + 77449^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112111201 - 2¹⁰ = 22112110177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112111207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2839016 + ... + 2846793.

It is an arithmetic number, because the mean of its divisors is an integer number (5529450225).

Almost surely, 2^22112111201 is an apocalyptic number.

It is an amenable number.

22112111201 is a deficient number, since it is larger than the sum of its proper divisors (5689699).

22112111201 is an equidigital number, since it uses as much as digits as its factorization.

22112111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689698.

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

Adding to 22112111201 its reverse (10211121122), we get a palindrome (32323232323).

The spelling of 22112111201 in words is "twenty-two billion, one hundred twelve million, one hundred eleven thousand, two hundred one".