22266 has 12 divisors (see below), whose sum is σ = 48282. Its totient is φ = 7416.

The previous prime is 22259. The next prime is 22271. The reversal of 22266 is 66222.

It can be written as a sum of positive squares in only one way, i.e., 16641 + 5625 = 129^2 + 75^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1237 = 22266 / (2 + 2 + 2 + 6 + 6).

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

It is a Curzon number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 22266.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 601 + ... + 636.

2²²²⁶⁶ is an apocalyptic number.

22266 is an abundant number, since it is smaller than the sum of its proper divisors (26016).

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

22266 is a wasteful number, since it uses less digits than its factorization.

22266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1242 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 22266 is about 149.2179613854. The cubic root of 22266 is about 28.1328718706.

Adding to 22266 its reverse (66222), we get a palindrome (88488).

Subtracting 22266 from its reverse (66222), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 22266 in words is "twenty-two thousand, two hundred sixty-six".