22182 has 8 divisors (see below), whose sum is σ = 44376.
Its totient is φ = 7392.
The previous prime is 22171. The next prime is 22189. The reversal of 22182 is 28122.
It can be divided in two parts, 221 and 82, that added together give a palindrome (303).
It is a sphenic number, since it is the product of 3 distinct primes.
22182 is an admirable number.
It is a super-2 number, since 2×221822 = 984082248, which contains 22 as substring.
It is a plaindrome in base 15.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22189) 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, 1843 + ... + 1854.
It is an arithmetic number, because the mean of its divisors is an integer number (5547).
222182 is an apocalyptic number.
22182 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
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 (22188).
22182 is a wasteful number, since it uses less digits than its factorization.
22182 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3702.
The product of its digits is 64, while the sum is 15.
The square root of 22182 is about 148.9362279635.
The cubic root of 22182 is about 28.0974495644.
The spelling of 22182 in words is "twenty-two thousand, one hundred eighty-two".