Adding to 12200100 its reverse (100221), we get a palindrome (12300321).
It is a happy number.
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is an unprimeable number.
Almost surely, 212200100 is an apocalyptic number.
12200100 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 12200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19259184).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12200100 is a wasteful number, since it uses less digits than its factorization.
12200100 is an evil number, because the sum of its binary digits is even.
The square root of 12200100 is about 3492.8641542436. The cubic root of 12200100 is about 230.2083807775.
The spelling of 12200100 in words is "twelve million, two hundred thousand, one hundred".