2303302221 has 12 divisors (see below), whose sum is σ = 3629446080. Its totient is φ = 1395940680.

The previous prime is 2303302193. The next prime is 2303302241. The reversal of 2303302221 is 1222033032.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2303302221 is a prime.

It is a super-2 number, since 2×2303302221² = 10610402242527065682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2303302194 and 2303302203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303302241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11632741 + ... + 11632938.

It is an arithmetic number, because the mean of its divisors is an integer number (302453840).

Almost surely, 2^2303302221 is an apocalyptic number.

It is an amenable number.

2303302221 is a deficient number, since it is larger than the sum of its proper divisors (1326143859).

2303302221 is a wasteful number, since it uses less digits than its factorization.

2303302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23265696 (or 23265693 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2303302221 is about 47992.7309183380. The cubic root of 2303302221 is about 1320.6375518653.

Adding to 2303302221 its reverse (1222033032), we get a palindrome (3525335253).

The spelling of 2303302221 in words is "two billion, three hundred three million, three hundred two thousand, two hundred twenty-one".