It is a congruent number.
Almost surely, 2100100222121200 is an apocalyptic number.
100100222121200 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 pseudoperfect number, because it is the sum of a subset of its proper divisors.
100100222121200 is a wasteful number, since it uses less digits than its factorization.
100100222121200 is an odious number, because the sum of its binary digits is odd.
Adding to 100100222121200 its reverse (2121222001001), we get a palindrome (102221444122201).
The spelling of 100100222121200 in words is "one hundred trillion, one hundred billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred".