22222271 has 8 divisors (see below), whose sum is σ = 22834944. Its totient is φ = 21614040.

The previous prime is 22222261. The next prime is 22222273. The reversal of 22222271 is 17222222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22222271 - 2¹⁰ = 22221247 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 (22222273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10700 + ... + 12606.

It is an arithmetic number, because the mean of its divisors is an integer number (2854368).

Almost surely, 2^22222271 is an apocalyptic number.

22222271 is a deficient number, since it is larger than the sum of its proper divisors (612673).

22222271 is a wasteful number, since it uses less digits than its factorization.

22222271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221.

The product of its digits is 448, while the sum is 20.

The square root of 22222271 is about 4714.0503815721. The cubic root of 22222271 is about 281.1444274710.

Adding to 22222271 its reverse (17222222), we get a palindrome (39444493).

The spelling of 22222271 in words is "twenty-two million, two hundred twenty-two thousand, two hundred seventy-one".