22115112143 has 4 divisors (see below), whose sum is σ = 22120607880. Its totient is φ = 22109616408.

The previous prime is 22115112127. The next prime is 22115112199. The reversal of 22115112143 is 34121151122.

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 22115112143 - 2⁴ = 22115112127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22115112113) 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, 2741828 + ... + 2749881.

It is an arithmetic number, because the mean of its divisors is an integer number (5530151970).

Almost surely, 2^22115112143 is an apocalyptic number.

22115112143 is a deficient number, since it is larger than the sum of its proper divisors (5495737).

22115112143 is an equidigital number, since it uses as much as digits as its factorization.

22115112143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495736.

The product of its digits is 480, while the sum is 23.

Adding to 22115112143 its reverse (34121151122), we get a palindrome (56236263265).

The spelling of 22115112143 in words is "twenty-two billion, one hundred fifteen million, one hundred twelve thousand, one hundred forty-three".