Adding to 22213 its reverse (31222), we get a palindrome (53435).
Subtracting 22213 from its reverse (31222), we obtain a palindrome (9009).
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a Duffinian number.
It is a plaindrome in base 15.
It is a self number, because there is not a number n which added to its sum of digits gives 22213.
It is a congruent number.
222213 is an apocalyptic number.
It is an amenable number.
22213 is an equidigital number, since it uses as much as digits as its factorization.
22213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 326.
The square root of 22213 is about 149.0402630164. The cubic root of 22213 is about 28.1105324769.
The spelling of 22213 in words is "twenty-two thousand, two hundred thirteen".