3221211330321 has 16 divisors (see below), whose sum is σ = 4314856331520. Its totient is φ = 2137543292160.

The previous prime is 3221211330251. The next prime is 3221211330353. The reversal of 3221211330321 is 1230331121223.

It is not a de Polignac number, because 3221211330321 - 2⁷ = 3221211330193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3221211330291 and 3221211330300.

It is not an unprimeable number, because it can be changed into a prime (3221211330221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2316886 + ... + 3436623.

It is an arithmetic number, because the mean of its divisors is an integer number (269678520720).

Almost surely, 2^{3221211330321} is an apocalyptic number.

It is an amenable number.

3221211330321 is a deficient number, since it is larger than the sum of its proper divisors (1093645001199).

3221211330321 is a wasteful number, since it uses less digits than its factorization.

3221211330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754376.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 3221211330321 its reverse (1230331121223), we get a palindrome (4451542451544).

The spelling of 3221211330321 in words is "three trillion, two hundred twenty-one billion, two hundred eleven million, three hundred thirty thousand, three hundred twenty-one".