Adding to 211122 its reverse (221112), we get a palindrome (432234).
211122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a nude number because it is divisible by every one of its digits.
It is a plaindrome in base 11.
211122 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2211122 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 211122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211122 is a wasteful number, since it uses less digits than its factorization.
211122 is an odious number, because the sum of its binary digits is odd.
The square root of 211122 is about 459.4801410290. The cubic root of 211122 is about 59.5448899760.
The spelling of 211122 in words is "two hundred eleven thousand, one hundred twenty-two", and thus it is an iban number.