22243271 has 4 divisors (see below), whose sum is σ = 22366344. Its totient is φ = 22120200.

The previous prime is 22243229. The next prime is 22243283. The reversal of 22243271 is 17234222.

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 22243271 - 2²² = 18048967 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 (22243201) 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, 61265 + ... + 61626.

It is an arithmetic number, because the mean of its divisors is an integer number (5591586).

Almost surely, 2^22243271 is an apocalyptic number.

22243271 is a deficient number, since it is larger than the sum of its proper divisors (123073).

22243271 is a wasteful number, since it uses less digits than its factorization.

22243271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123072.

The product of its digits is 1344, while the sum is 23.

The square root of 22243271 is about 4716.2772395185. The cubic root of 22243271 is about 281.2329598894.

Adding to 22243271 its reverse (17234222), we get a palindrome (39477493).

The spelling of 22243271 in words is "twenty-two million, two hundred forty-three thousand, two hundred seventy-one".