3221331321001 has 8 divisors (see below), whose sum is σ = 3225062411784. Its totient is φ = 3217601541120.

The previous prime is 3221331320989. The next prime is 3221331321071. The reversal of 3221331321001 is 1001231331223.

It can be written as a sum of positive squares in 4 ways, for example, as 2671770048025 + 549561272976 = 1634555^2 + 741324^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3221331321001 - 2¹⁵ = 3221331288233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221331321071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4633195 + ... + 5282911.

It is an arithmetic number, because the mean of its divisors is an integer number (403132801473).

Almost surely, 2^{3221331321001} is an apocalyptic number.

It is an amenable number.

3221331321001 is a deficient number, since it is larger than the sum of its proper divisors (3731090783).

3221331321001 is a wasteful number, since it uses less digits than its factorization.

3221331321001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655451.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3221331321001 its reverse (1001231331223), we get a palindrome (4222562652224).

The spelling of 3221331321001 in words is "three trillion, two hundred twenty-one billion, three hundred thirty-one million, three hundred twenty-one thousand, one".