It is a happy number.
It is a congruent number.
It is an unprimeable number.
21102100 is an apocalyptic number.
1102100 is a gapful number since it is divisible by the number (10) 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 1102100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1102100 is a wasteful number, since it uses less digits than its factorization.
1102100 is an odious number, because the sum of its binary digits is odd.
The square root of 1102100 is about 1049.8095065296. The cubic root of 1102100 is about 103.2936603396.
Adding to 1102100 its reverse (12011), we get a palindrome (1114111).
The spelling of 1102100 in words is "one million, one hundred two thousand, one hundred".