3030330221 has 4 divisors (see below), whose sum is σ = 3030871932. Its totient is φ = 3029788512.

The previous prime is 3030330209. The next prime is 3030330227. The reversal of 3030330221 is 1220330303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1220330303 = 383 ⋅3186241.

It can be written as a sum of positive squares in 2 ways, for example, as 2589792100 + 440538121 = 50890^2 + 20989^2 .

It is a cyclic number.

It is not a de Polignac number, because 3030330221 - 2¹⁸ = 3030068077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3030330221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3030330227) 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 in 3 ways as a sum of consecutive naturals, for example, 262376 + ... + 273681.

It is an arithmetic number, because the mean of its divisors is an integer number (757717983).

Almost surely, 2^3030330221 is an apocalyptic number.

It is an amenable number.

3030330221 is a deficient number, since it is larger than the sum of its proper divisors (541711).

3030330221 is an equidigital number, since it uses as much as digits as its factorization.

3030330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541710.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 3030330221 is about 55048.4352275339. The cubic root of 3030330221 is about 1447.0936984363.

Adding to 3030330221 its reverse (1220330303), we get a palindrome (4250660524).

The spelling of 3030330221 in words is "three billion, thirty million, three hundred thirty thousand, two hundred twenty-one".