22239349871 has 4 divisors (see below), whose sum is σ = 22240117200. Its totient is φ = 22238582544.

The previous prime is 22239349861. The next prime is 22239349889. The reversal of 22239349871 is 17894393222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22239349871 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 (22239349801) 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, 338411 + ... + 398748.

It is an arithmetic number, because the mean of its divisors is an integer number (5560029300).

Almost surely, 2^22239349871 is an apocalyptic number.

22239349871 is a deficient number, since it is larger than the sum of its proper divisors (767329).

22239349871 is an equidigital number, since it uses as much as digits as its factorization.

22239349871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767328.

The product of its digits is 1306368, while the sum is 50.

The spelling of 22239349871 in words is "twenty-two billion, two hundred thirty-nine million, three hundred forty-nine thousand, eight hundred seventy-one".