330001331221 has 16 divisors (see below), whose sum is σ = 362639471040. Its totient is φ = 298902562560.

The previous prime is 330001331173. The next prime is 330001331227. The reversal of 330001331221 is 122133100033.

It is not a de Polignac number, because 330001331221 - 2²³ = 329992942613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330001331227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938835 + ... + 1241536.

It is an arithmetic number, because the mean of its divisors is an integer number (22664966940).

Almost surely, 2^330001331221 is an apocalyptic number.

It is an amenable number.

330001331221 is a deficient number, since it is larger than the sum of its proper divisors (32638139819).

330001331221 is a wasteful number, since it uses less digits than its factorization.

330001331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180724.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 330001331221 its reverse (122133100033), we get a palindrome (452134431254).

The spelling of 330001331221 in words is "three hundred thirty billion, one million, three hundred thirty-one thousand, two hundred twenty-one".