It is a semiprime because it is the product of two primes.
It is a plaindrome in base 11 and base 16.
It is a congruent number.
22118 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
222118 is an apocalyptic number.
22118 is a wasteful number, since it uses less digits than its factorization.
22118 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11061.
The square root of 22118 is about 148.7212157024. The cubic root of 22118 is about 28.0704010718.
The spelling of 22118 in words is "twenty-two thousand, one hundred eighteen".