27222 has 16 divisors (see below), whose sum is σ = 58800. Its totient is φ = 8352.

The previous prime is 27211. The next prime is 27239. The reversal of 27222 is 22272.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 27222.

It is an unprimeable number.

27222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97 + ... + 252.

It is an arithmetic number, because the mean of its divisors is an integer number (3675).

2²⁷²²² is an apocalyptic number.

27222 is an abundant number, since it is smaller than the sum of its proper divisors (31578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29400).

27222 is a wasteful number, since it uses less digits than its factorization.

27222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367.

The product of its digits is 112, while the sum is 15.

The square root of 27222 is about 164.9909088405. The cubic root of 27222 is about 30.0819978962.

Adding to 27222 its reverse (22272), we get a palindrome (49494).

Subtracting from 27222 its reverse (22272), we obtain a triangular number (4950 = T₉₉).

The spelling of 27222 in words is "twenty-seven thousand, two hundred twenty-two", and thus it is an iban number.