Adding to 1201122 its reverse (2211021), we get a palindrome (3412143).
It is a congruent number.
It is an unprimeable number.
21201122 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1201122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1201122 is a wasteful number, since it uses less digits than its factorization.
1201122 is an evil number, because the sum of its binary digits is even.
The square root of 1201122 is about 1095.9571159493. The cubic root of 1201122 is about 106.2989661268.
The spelling of 1201122 in words is "one million, two hundred one thousand, one hundred twenty-two".