3328630021 has 2 divisors, whose sum is σ = 3328630022. Its totient is φ = 3328630020.

The previous prime is 3328629979. The next prime is 3328630027. The reversal of 3328630021 is 1200368233.

3328630021 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., 2353317121 + 975312900 = 48511^2 + 31230^2 .

It is a cyclic number.

It is not a de Polignac number, because 3328630021 - 2¹⁷ = 3328498949 is a prime.

It is a super-2 number, since 2×3328630021² = 22159555633404920882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3328630027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664315010 + 1664315011.

It is an arithmetic number, because the mean of its divisors is an integer number (1664315011).

Almost surely, 2^3328630021 is an apocalyptic number.

It is an amenable number.

3328630021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3328630021 is an equidigital number, since it uses as much as digits as its factorization.

3328630021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 3328630021 is about 57694.2806610846. The cubic root of 3328630021 is about 1493.0986699399.

Adding to 3328630021 its reverse (1200368233), we get a palindrome (4528998254).

The spelling of 3328630021 in words is "three billion, three hundred twenty-eight million, six hundred thirty thousand, twenty-one".