330000221321 has 4 divisors (see below), whose sum is σ = 334520772372. Its totient is φ = 325479670272.

The previous prime is 330000221269. The next prime is 330000221339. The reversal of 330000221321 is 123122000033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130798678921 + 199201542400 = 361661^2 + 446320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330000221321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 330000221321.

It is not an unprimeable number, because it can be changed into a prime (330000221371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260275416 + ... + 2260275561.

It is an arithmetic number, because the mean of its divisors is an integer number (83630193093).

Almost surely, 2^330000221321 is an apocalyptic number.

It is an amenable number.

330000221321 is a deficient number, since it is larger than the sum of its proper divisors (4520551051).

330000221321 is an equidigital number, since it uses as much as digits as its factorization.

330000221321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520551050.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 330000221321 its reverse (123122000033), we get a palindrome (453122221354).

The spelling of 330000221321 in words is "three hundred thirty billion, two hundred twenty-one thousand, three hundred twenty-one".