It is a congruent number.
It is an unprimeable number.
Almost surely, 2201220212 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 201220212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246859200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
201220212 is a wasteful number, since it uses less digits than its factorization.
201220212 is an evil number, because the sum of its binary digits is even.
The square root of 201220212 is about 14185.2110312113. The cubic root of 201220212 is about 585.9904443067.
Adding to 201220212 its reverse (212022102), we get a palindrome (413242314).
The spelling of 201220212 in words is "two hundred one million, two hundred twenty thousand, two hundred twelve".