It is a congruent number.
It is an unprimeable number.
Almost surely, 211211220220102 is an apocalyptic number.
11211220220102 is an equidigital number, since it uses as much as digits as its factorization.
11211220220102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8997769135.
Adding to 11211220220102 its reverse (20102202211211), we get a palindrome (31313422431313).
The spelling of 11211220220102 in words is "eleven trillion, two hundred eleven billion, two hundred twenty million, two hundred twenty thousand, one hundred two".