3030123221 has 4 divisors (see below), whose sum is σ = 3041062572. Its totient is φ = 3019183872.

The previous prime is 3030123209. The next prime is 3030123227. The reversal of 3030123221 is 1223210303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1223210303 = 7 ⋅174744329.

It can be written as a sum of positive squares in 2 ways, for example, as 1189284196 + 1840839025 = 34486^2 + 42905^2 .

It is a cyclic number.

It is not a de Polignac number, because 3030123221 - 2⁶ = 3030123157 is a prime.

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 3030123221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3030123227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5469260 + ... + 5469813.

It is an arithmetic number, because the mean of its divisors is an integer number (760265643).

Almost surely, 2^3030123221 is an apocalyptic number.

It is an amenable number.

3030123221 is a deficient number, since it is larger than the sum of its proper divisors (10939351).

3030123221 is a wasteful number, since it uses less digits than its factorization.

3030123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10939350.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3030123221 is about 55046.5550329900. Note that the first 3 decimals coincide. The cubic root of 3030123221 is about 1447.0607476582.

Adding to 3030123221 its reverse (1223210303), we get a palindrome (4253333524).

The spelling of 3030123221 in words is "three billion, thirty million, one hundred twenty-three thousand, two hundred twenty-one".