It is an unprimeable number.
Almost surely, 2100212102121100 is an apocalyptic number.
100212102121100 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.
100212102121100 is a wasteful number, since it uses less digits than its factorization.
100212102121100 is an odious number, because the sum of its binary digits is odd.
Adding to 100212102121100 its reverse (1121201212001), we get a palindrome (101333303333101).
Subtracting from 100212102121100 its reverse (1121201212001), we obtain a palindrome (99090900909099).
The spelling of 100212102121100 in words is "one hundred trillion, two hundred twelve billion, one hundred two million, one hundred twenty-one thousand, one hundred".