It is a happy number.
It is a Duffinian number.
It is a congruent number.
Almost surely, 211010212212103 is an apocalyptic number.
11010212212103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
11010212212103 is a wasteful number, since it uses less digits than its factorization.
11010212212103 is an evil number, because the sum of its binary digits is even.
Adding to 11010212212103 its reverse (30121221201011), we get a palindrome (41131433413114).
The spelling of 11010212212103 in words is "eleven trillion, ten billion, two hundred twelve million, two hundred twelve thousand, one hundred three".