Adding to 10011112121100 its reverse (112121111001), we get a palindrome (10123233232101).
It is an unprimeable number.
Almost surely, 210011112121100 is an apocalyptic number.
10011112121100 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.
10011112121100 is a wasteful number, since it uses less digits than its factorization.
10011112121100 is an odious number, because the sum of its binary digits is odd.
The spelling of 10011112121100 in words is "ten trillion, eleven billion, one hundred twelve million, one hundred twenty-one thousand, one hundred".