3045030221 has 4 divisors (see below), whose sum is σ = 3063711552. Its totient is φ = 3026348892.

The previous prime is 3045030217. The next prime is 3045030257. The reversal of 3045030221 is 1220305403.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1220305403 = 9109 ⋅133967.

It is a cyclic number.

It is not a de Polignac number, because 3045030221 - 2² = 3045030217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3045030193 and 3045030202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3045030721) 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, 9340421 + ... + 9340746.

It is an arithmetic number, because the mean of its divisors is an integer number (765927888).

Almost surely, 2^3045030221 is an apocalyptic number.

It is an amenable number.

3045030221 is a deficient number, since it is larger than the sum of its proper divisors (18681331).

3045030221 is a wasteful number, since it uses less digits than its factorization.

3045030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18681330.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3045030221 is about 55181.7924772293. The cubic root of 3045030221 is about 1449.4298544825.

Adding to 3045030221 its reverse (1220305403), we get a palindrome (4265335624).

The spelling of 3045030221 in words is "three billion, forty-five million, thirty thousand, two hundred twenty-one".