22131120111 has 4 divisors (see below), whose sum is σ = 29508160152. Its totient is φ = 14754080072.

The previous prime is 22131120079. The next prime is 22131120113. The reversal of 22131120111 is 11102113122.

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

It is a cyclic number.

It is not a de Polignac number, because 22131120111 - 2⁵ = 22131120079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131120113) 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, 3688520016 + ... + 3688520021.

It is an arithmetic number, because the mean of its divisors is an integer number (7377040038).

Almost surely, 2^22131120111 is an apocalyptic number.

22131120111 is a deficient number, since it is larger than the sum of its proper divisors (7377040041).

22131120111 is an equidigital number, since it uses as much as digits as its factorization.

22131120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377040040.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 22131120111 its reverse (11102113122), we get a palindrome (33233233233).

The spelling of 22131120111 in words is "twenty-two billion, one hundred thirty-one million, one hundred twenty thousand, one hundred eleven".