22732271 has 2 divisors, whose sum is σ = 22732272. Its totient is φ = 22732270.

The previous prime is 22732261. The next prime is 22732301. The reversal of 22732271 is 17223722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22732271 - 2¹⁸ = 22470127 is a prime.

It is a super-2 number, since 2×22732271² = 1033512289634882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 22732271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22732231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11366135 + 11366136.

It is an arithmetic number, because the mean of its divisors is an integer number (11366136).

Almost surely, 2^22732271 is an apocalyptic number.

22732271 is a deficient number, since it is larger than the sum of its proper divisors (1).

22732271 is an equidigital number, since it uses as much as digits as its factorization.

22732271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 26.

The square root of 22732271 is about 4767.8371406750. The cubic root of 22732271 is about 283.2789310390.

Adding to 22732271 its reverse (17223722), we get a palindrome (39955993).

The spelling of 22732271 in words is "twenty-two million, seven hundred thirty-two thousand, two hundred seventy-one".