3303330221 has 2 divisors, whose sum is σ = 3303330222. Its totient is φ = 3303330220.

The previous prime is 3303330211. The next prime is 3303330229. The reversal of 3303330221 is 1220333033.

3303330221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3182088100 + 121242121 = 56410^2 + 11011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3303330221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3303330193 and 3303330202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3303330229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1651665110 + 1651665111.

It is an arithmetic number, because the mean of its divisors is an integer number (1651665111).

Almost surely, 2^3303330221 is an apocalyptic number.

It is an amenable number.

3303330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3303330221 is an equidigital number, since it uses as much as digits as its factorization.

3303330221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 3303330221 is about 57474.6050095170. The cubic root of 3303330221 is about 1489.3061978662.

Adding to 3303330221 its reverse (1220333033), we get a palindrome (4523663254).

The spelling of 3303330221 in words is "three billion, three hundred three million, three hundred thirty thousand, two hundred twenty-one".