Adding to 20112210000012 its reverse (21000001221102), we get a palindrome (41112211221114).
It is an unprimeable number.
Almost surely, 220112210000012 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20112210000012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26433038177280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20112210000012 is a wasteful number, since it uses less digits than its factorization.
20112210000012 is an odious number, because the sum of its binary digits is odd.
The spelling of 20112210000012 in words is "twenty trillion, one hundred twelve billion, two hundred ten million, twelve", and thus it is an aban number.