Adding to 12200221200 its reverse (212200221), we get a palindrome (12412421421).
It is an unprimeable number.
Almost surely, 212200221200 is an apocalyptic number.
12200221200 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 12200221200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20428284520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12200221200 is a wasteful number, since it uses less digits than its factorization.
12200221200 is an evil number, because the sum of its binary digits is even.
The spelling of 12200221200 in words is "twelve billion, two hundred million, two hundred twenty-one thousand, two hundred".