22422271 has 4 divisors (see below), whose sum is σ = 22490344. Its totient is φ = 22354200.

The previous prime is 22422247. The next prime is 22422293. The reversal of 22422271 is 17222422.

It is a happy number.

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 22422271 - 2⁷ = 22422143 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 (22422671) 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, 33540 + ... + 34201.

It is an arithmetic number, because the mean of its divisors is an integer number (5622586).

Almost surely, 2^22422271 is an apocalyptic number.

22422271 is a deficient number, since it is larger than the sum of its proper divisors (68073).

22422271 is an equidigital number, since it uses as much as digits as its factorization.

22422271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68072.

The product of its digits is 896, while the sum is 22.

The square root of 22422271 is about 4735.2160457576. The cubic root of 22422271 is about 281.9853411893.

Adding to 22422271 its reverse (17222422), we get a palindrome (39644693).

The spelling of 22422271 in words is "twenty-two million, four hundred twenty-two thousand, two hundred seventy-one".