Adding to 100111121211000 its reverse (112121111001), we get a palindrome (100223242322001).
Subtracting from 100111121211000 its reverse (112121111001), we obtain a palindrome (99999000099999).
It is a congruent number.
It is an unprimeable number.
Almost surely, 2100111121211000 is an apocalyptic number.
100111121211000 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.
100111121211000 is a wasteful number, since it uses less digits than its factorization.
100111121211000 is an odious number, because the sum of its binary digits is odd.
The spelling of 100111121211000 in words is "one hundred trillion, one hundred eleven billion, one hundred twenty-one million, two hundred eleven thousand".