3301221003221 has 2 divisors, whose sum is σ = 3301221003222. Its totient is φ = 3301221003220.

The previous prime is 3301221003217. The next prime is 3301221003271. The reversal of 3301221003221 is 1223001221033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2466627302500 + 834593700721 = 1570550^2 + 913561^2 .

It is an emirp because it is prime and its reverse (1223001221033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3301221003221 - 2² = 3301221003217 is a prime.

It is a super-2 number, since 2×3301221003221² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3301221003193 and 3301221003202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3301221003271) 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 as a sum of consecutive naturals, namely, 1650610501610 + 1650610501611.

It is an arithmetic number, because the mean of its divisors is an integer number (1650610501611).

Almost surely, 2^{3301221003221} is an apocalyptic number.

It is an amenable number.

3301221003221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3301221003221 is an equidigital number, since it uses as much as digits as its factorization.

3301221003221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3301221003221 its reverse (1223001221033), we get a palindrome (4524222224254).

The spelling of 3301221003221 in words is "three trillion, three hundred one billion, two hundred twenty-one million, three thousand, two hundred twenty-one".