Adding to 221200 its reverse (2122), we get a palindrome (223322).
It is a happy number.
221200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
2221200 is an apocalyptic number.
221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 221200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
221200 is a wasteful number, since it uses less digits than its factorization.
221200 is an odious number, because the sum of its binary digits is odd.
The square root of 221200 is about 470.3190406522. The cubic root of 221200 is about 60.4776686017.
The spelling of 221200 in words is "two hundred twenty-one thousand, two hundred", and thus it is an iban number.