22120055131 has 4 divisors (see below), whose sum is σ = 22175773552. Its totient is φ = 22064336712.

The previous prime is 22120055119. The next prime is 22120055261. The reversal of 22120055131 is 13155002122.

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 22120055131 - 2⁷ = 22120055003 is a prime.

It is a super-2 number, since 2×22120055131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120055831) 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 3 ways as a sum of consecutive naturals, for example, 27858615 + ... + 27859408.

It is an arithmetic number, because the mean of its divisors is an integer number (5543943388).

Almost surely, 2^22120055131 is an apocalyptic number.

22120055131 is a deficient number, since it is larger than the sum of its proper divisors (55718421).

22120055131 is an equidigital number, since it uses as much as digits as its factorization.

22120055131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55718420.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 22120055131 its reverse (13155002122), we get a palindrome (35275057253).

The spelling of 22120055131 in words is "twenty-two billion, one hundred twenty million, fifty-five thousand, one hundred thirty-one".