1330303221 has 24 divisors (see below), whose sum is σ = 2178277920. Its totient is φ = 775560096.

The previous prime is 1330303171. The next prime is 1330303231. The reversal of 1330303221 is 1223030331.

It is not a de Polignac number, because 1330303221 - 2²⁶ = 1263194357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1330303194 and 1330303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330303231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296991 + ... + 301436.

It is an arithmetic number, because the mean of its divisors is an integer number (90761580).

Almost surely, 2^1330303221 is an apocalyptic number.

It is an amenable number.

1330303221 is a deficient number, since it is larger than the sum of its proper divisors (847974699).

1330303221 is a wasteful number, since it uses less digits than its factorization.

1330303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598465 (or 598462 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1330303221 is about 36473.3220450235. The cubic root of 1330303221 is about 1099.8080163572.

Adding to 1330303221 its reverse (1223030331), we get a palindrome (2553333552).

The spelling of 1330303221 in words is "one billion, three hundred thirty million, three hundred three thousand, two hundred twenty-one".