3221011232321 has 4 divisors (see below), whose sum is σ = 3232004445012. Its totient is φ = 3210018019632.

The previous prime is 3221011232267. The next prime is 3221011232333. The reversal of 3221011232321 is 1232321101223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2832303873025 + 388707359296 = 1682945^2 + 623464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221011232321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221011232521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5496605906 + ... + 5496606491.

It is an arithmetic number, because the mean of its divisors is an integer number (808001111253).

Almost surely, 2^{3221011232321} is an apocalyptic number.

It is an amenable number.

3221011232321 is a deficient number, since it is larger than the sum of its proper divisors (10993212691).

3221011232321 is a wasteful number, since it uses less digits than its factorization.

3221011232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10993212690.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 3221011232321 its reverse (1232321101223), we get a palindrome (4453332333544).

The spelling of 3221011232321 in words is "three trillion, two hundred twenty-one billion, eleven million, two hundred thirty-two thousand, three hundred twenty-one".