22271161 has 8 divisors (see below), whose sum is σ = 24694848. Its totient is φ = 19914000.

The previous prime is 22271149. The next prime is 22271167. The reversal of 22271161 is 16117222.

It is a happy number.

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 22271161 - 2⁵ = 22271129 is a prime.

It is a super-2 number, since 2×22271161² = 992009224575842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22271167) 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, 15925 + ... + 17266.

It is an arithmetic number, because the mean of its divisors is an integer number (3086856).

Almost surely, 2^22271161 is an apocalyptic number.

It is an amenable number.

22271161 is a deficient number, since it is larger than the sum of its proper divisors (2423687).

22271161 is a wasteful number, since it uses less digits than its factorization.

22271161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33263.

The product of its digits is 336, while the sum is 22.

The square root of 22271161 is about 4719.2330944763. The cubic root of 22271161 is about 281.3504532694.

Adding to 22271161 its reverse (16117222), we get a palindrome (38388383).

The spelling of 22271161 in words is "twenty-two million, two hundred seventy-one thousand, one hundred sixty-one".