3020303221 has 8 divisors (see below), whose sum is σ = 3256919064. Its totient is φ = 2784299520.

The previous prime is 3020303191. The next prime is 3020303239. The reversal of 3020303221 is 1223030203.

It can be written as a sum of positive squares in 4 ways, for example, as 40780996 + 2979522225 = 6386^2 + 54585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3020303221 - 2⁵ = 3020303189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020303195 and 3020303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020300221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142756 + ... + 162541.

It is an arithmetic number, because the mean of its divisors is an integer number (407114883).

Almost surely, 2^3020303221 is an apocalyptic number.

It is an amenable number.

3020303221 is a deficient number, since it is larger than the sum of its proper divisors (236615843).

3020303221 is a wasteful number, since it uses less digits than its factorization.

3020303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306071.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 3020303221 is about 54957.2854224078. The cubic root of 3020303221 is about 1445.4958481582.

Adding to 3020303221 its reverse (1223030203), we get a palindrome (4243333424).

The spelling of 3020303221 in words is "three billion, twenty million, three hundred three thousand, two hundred twenty-one".