It is a cyclic number.
It is a Duffinian number.
Almost surely, 213221330222121 is an apocalyptic number.
It is an amenable number.
13221330222121 is a wasteful number, since it uses less digits than its factorization.
13221330222121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17528040.
Adding to 13221330222121 its reverse (12122203312231), we get a palindrome (25343533534352).
The spelling of 13221330222121 in words is "thirteen trillion, two hundred twenty-one billion, three hundred thirty million, two hundred twenty-two thousand, one hundred twenty-one".