Adding to 212010021200 its reverse (2120010212), we get a palindrome (214130031412).
It is a happy number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2212010021200 is an apocalyptic number.
212010021200 is a gapful number since it is divisible by the number (20) 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.
212010021200 is a wasteful number, since it uses less digits than its factorization.
212010021200 is an odious number, because the sum of its binary digits is odd.
The spelling of 212010021200 in words is "two hundred twelve billion, ten million, twenty-one thousand, two hundred".