22105104271 has 4 divisors (see below), whose sum is σ = 22114096200. Its totient is φ = 22096112344.

The previous prime is 22105104257. The next prime is 22105104323. The reversal of 22105104271 is 17240150122.

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 22105104271 - 2⁵ = 22105104239 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 (22105104211) 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, 4492276 + ... + 4497193.

It is an arithmetic number, because the mean of its divisors is an integer number (5528524050).

Almost surely, 2^22105104271 is an apocalyptic number.

22105104271 is a deficient number, since it is larger than the sum of its proper divisors (8991929).

22105104271 is an equidigital number, since it uses as much as digits as its factorization.

22105104271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8991928.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 22105104271 its reverse (17240150122), we get a palindrome (39345254393).

The spelling of 22105104271 in words is "twenty-two billion, one hundred five million, one hundred four thousand, two hundred seventy-one".