3321021332221 has 16 divisors (see below), whose sum is σ = 3531367445760. Its totient is φ = 3112353637120.

The previous prime is 3321021332203. The next prime is 3321021332281. The reversal of 3321021332221 is 1222331201233.

It is a cyclic number.

It is not a de Polignac number, because 3321021332221 - 2¹¹ = 3321021330173 is a prime.

It is a super-2 number, since 2×3321021332221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321021332281) 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, 8249736 + ... + 8642926.

It is an arithmetic number, because the mean of its divisors is an integer number (220710465360).

Almost surely, 2^{3321021332221} is an apocalyptic number.

It is an amenable number.

3321021332221 is a deficient number, since it is larger than the sum of its proper divisors (210346113539).

3321021332221 is a wasteful number, since it uses less digits than its factorization.

3321021332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395324.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 3321021332221 its reverse (1222331201233), we get a palindrome (4543352533454).

The spelling of 3321021332221 in words is "three trillion, three hundred twenty-one billion, twenty-one million, three hundred thirty-two thousand, two hundred twenty-one".