22132271 has 6 divisors (see below), whose sum is σ = 25745760. Its totient is φ = 18970476.

The previous prime is 22132267. The next prime is 22132291. The reversal of 22132271 is 17223122.

It is not a de Polignac number, because 22132271 - 2² = 22132267 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 (22132211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225791 + ... + 225888.

It is an arithmetic number, because the mean of its divisors is an integer number (4290960).

Almost surely, 2^22132271 is an apocalyptic number.

22132271 is a deficient number, since it is larger than the sum of its proper divisors (3613489).

22132271 is an equidigital number, since it uses as much as digits as its factorization.

22132271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451693 (or 451686 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 22132271 is about 4704.4947656470. The cubic root of 22132271 is about 280.7643697875.

Adding to 22132271 its reverse (17223122), we get a palindrome (39355393).

The spelling of 22132271 in words is "twenty-two million, one hundred thirty-two thousand, two hundred seventy-one".