It is a congruent number.
Almost surely, 2100112221012120 is an apocalyptic number.
100112221012120 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.
100112221012120 is a wasteful number, since it uses less digits than its factorization.
100112221012120 is an evil number, because the sum of its binary digits is even.
Adding to 100112221012120 its reverse (21210122211001), we get a palindrome (121322343223121).
The spelling of 100112221012120 in words is "one hundred trillion, one hundred twelve billion, two hundred twenty-one million, twelve thousand, one hundred twenty".