22210 has 8 divisors (see below), whose sum is σ = 39996. Its totient is φ = 8880.

The previous prime is 22193. The next prime is 22229. The reversal of 22210 is 1222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22201 + 9 = 149^2 + 3^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22193 and 22202.

It is an unprimeable number.

22210 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101 + ... + 1120.

2²²²¹⁰ is an apocalyptic number.

22210 is a deficient number, since it is larger than the sum of its proper divisors (17786).

22210 is a wasteful number, since it uses less digits than its factorization.

22210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 22210 is about 149.0301982821. The cubic root of 22210 is about 28.1092669207.

Adding to 22210 its reverse (1222), we get a palindrome (23432).

It can be divided in two parts, 222 and 10, that added together give a palindrome (232).

The spelling of 22210 in words is "twenty-two thousand, two hundred ten", and thus it is an iban number.