22442271 has 4 divisors (see below), whose sum is σ = 29923032. Its totient is φ = 14961512.

The previous prime is 22442269. The next prime is 22442279. The reversal of 22442271 is 17224422.

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 22442271 - 2¹ = 22442269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442279) 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, 3740376 + ... + 3740381.

It is an arithmetic number, because the mean of its divisors is an integer number (7480758).

Almost surely, 2^22442271 is an apocalyptic number.

22442271 is a deficient number, since it is larger than the sum of its proper divisors (7480761).

22442271 is an equidigital number, since it uses as much as digits as its factorization.

22442271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7480760.

The product of its digits is 1792, while the sum is 24.

The square root of 22442271 is about 4737.3274111043. The cubic root of 22442271 is about 282.0691571245.

Adding to 22442271 its reverse (17224422), we get a palindrome (39666693).

The spelling of 22442271 in words is "twenty-two million, four hundred forty-two thousand, two hundred seventy-one".