It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13234212033221 is a prime.
It is a congruent number.
Almost surely, 213234212033221 is an apocalyptic number.
It is an amenable number.
13234212033221 is an equidigital number, since it uses as much as digits as its factorization.
13234212033221 is an odious number, because the sum of its binary digits is odd.
Adding to 13234212033221 its reverse (12233021243231), we get a palindrome (25467233276452).
The spelling of 13234212033221 in words is "thirteen trillion, two hundred thirty-four billion, two hundred twelve million, thirty-three thousand, two hundred twenty-one".