Adding to 1121112022100 its reverse (12202111211), we get a palindrome (1133314133311).
It is a congruent number.
It is an unprimeable number.
Almost surely, 21121112022100 is an apocalyptic number.
1121112022100 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.
1121112022100 is a wasteful number, since it uses less digits than its factorization.
1121112022100 is an evil number, because the sum of its binary digits is even.
The spelling of 1121112022100 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, twenty-two thousand, one hundred".