20233320330221 has 4 divisors (see below), whose sum is σ = 20233593131100. Its totient is φ = 20233047529344.

The previous prime is 20233320330187. The next prime is 20233320330229. The reversal of 20233320330221 is 12203302333202.

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 3870607672996 + 16362712657225 = 1967386^2 + 4045085^2 .

It is a cyclic number.

It is not a de Polignac number, because 20233320330221 - 2³⁴ = 20216140461037 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 (20233320330229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136289156 + ... + 136437533.

It is an arithmetic number, because the mean of its divisors is an integer number (5058398282775).

Almost surely, 2^{20233320330221} is an apocalyptic number.

It is an amenable number.

20233320330221 is a deficient number, since it is larger than the sum of its proper divisors (272800879).

20233320330221 is an equidigital number, since it uses as much as digits as its factorization.

20233320330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272800878.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 20233320330221 its reverse (12203302333202), we get a palindrome (32436622663423).

The spelling of 20233320330221 in words is "twenty trillion, two hundred thirty-three billion, three hundred twenty million, three hundred thirty thousand, two hundred twenty-one".