It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a Duffinian number.
Almost surely, 221213543315001 is an apocalyptic number.
It is an amenable number.
21213543315001 is a wasteful number, since it uses less digits than its factorization.
21213543315001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 292316703.
Adding to 21213543315001 its reverse (10051334531212), we get a palindrome (31264877846213).
The spelling of 21213543315001 in words is "twenty-one trillion, two hundred thirteen billion, five hundred forty-three million, three hundred fifteen thousand, one".