22722 has 16 divisors (see below), whose sum is σ = 52032. Its totient is φ = 6480.

The previous prime is 22721. The next prime is 22727.

22722 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×22722³ = 35193375333144, which contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22721) 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, 229 + ... + 312.

It is an arithmetic number, because the mean of its divisors is an integer number (3252).

2²²⁷²² is an apocalyptic number.

22722 is an abundant number, since it is smaller than the sum of its proper divisors (29310).

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 (26016).

22722 is a wasteful number, since it uses less digits than its factorization.

22722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

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

The square root of 22722 is about 150.7381836165. The cubic root of 22722 is about 28.3236260479.

It can be divided in two parts, 227 and 22, that multiplied together give a palindrome (4994).

The spelling of 22722 in words is "twenty-two thousand, seven hundred twenty-two", and thus it is an iban number.