221330300320213 has 4 divisors (see below), whose sum is σ = 252948914651680. Its totient is φ = 189711685988748.

The previous prime is 221330300320211. The next prime is 221330300320237. The reversal of 221330300320213 is 312023003033122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 221330300320213 - 2¹ = 221330300320211 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 (221330300320211) 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, 15809307165723 + ... + 15809307165736.

It is an arithmetic number, because the mean of its divisors is an integer number (63237228662920).

Almost surely, 2^{221330300320213} is an apocalyptic number.

It is an amenable number.

221330300320213 is a deficient number, since it is larger than the sum of its proper divisors (31618614331467).

221330300320213 is an equidigital number, since it uses as much as digits as its factorization.

221330300320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31618614331466.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 221330300320213 its reverse (312023003033122), we get a palindrome (533353303353335).

The spelling of 221330300320213 in words is "two hundred twenty-one trillion, three hundred thirty billion, three hundred million, three hundred twenty thousand, two hundred thirteen".