3323221331221 has 12 divisors (see below), whose sum is σ = 3652853162476. Its totient is φ = 3021063851520.

The previous prime is 3323221331173. The next prime is 3323221331231. The reversal of 3323221331221 is 1221331223233.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1018563359121 + 2304657972100 = 1009239^2 + 1518110^2 .

It is not a de Polignac number, because 3323221331221 - 2¹⁷ = 3323221200149 is a prime.

It is a super-2 number, since 2×3323221331221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3323221331221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3323221331231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9547381 + ... + 9889333.

Almost surely, 2^{3323221331221} is an apocalyptic number.

It is an amenable number.

3323221331221 is a deficient number, since it is larger than the sum of its proper divisors (329631831255).

3323221331221 is a wasteful number, since it uses less digits than its factorization.

3323221331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422292 (or 422281 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

Adding to 3323221331221 its reverse (1221331223233), we get a palindrome (4544552554454).

The spelling of 3323221331221 in words is "three trillion, three hundred twenty-three billion, two hundred twenty-one million, three hundred thirty-one thousand, two hundred twenty-one".