1330324221 has 32 divisors (see below), whose sum is σ = 1878370560. Its totient is φ = 836186624.

The previous prime is 1330324217. The next prime is 1330324223. The reversal of 1330324221 is 1224230331.

It is a cyclic number.

It is not a de Polignac number, because 1330324221 - 2² = 1330324217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330324223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1212145 + ... + 1213241.

It is an arithmetic number, because the mean of its divisors is an integer number (58699080).

Almost surely, 2^1330324221 is an apocalyptic number.

It is an amenable number.

1330324221 is a deficient number, since it is larger than the sum of its proper divisors (548046339).

1330324221 is a wasteful number, since it uses less digits than its factorization.

1330324221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1330324221 is about 36473.6099255338. The cubic root of 1330324221 is about 1099.8138034706.

Adding to 1330324221 its reverse (1224230331), we get a palindrome (2554554552).

The spelling of 1330324221 in words is "one billion, three hundred thirty million, three hundred twenty-four thousand, two hundred twenty-one".