It is a happy number.
It is a Curzon number.
It is a congruent number.
21101126 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1101126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1101126 is a wasteful number, since it uses less digits than its factorization.
1101126 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 780.
The square root of 1101126 is about 1049.3455103063. The cubic root of 1101126 is about 103.2632221829.
Adding to 1101126 its reverse (6211011), we get a palindrome (7312137).
The spelling of 1101126 in words is "one million, one hundred one thousand, one hundred twenty-six".