1322320310221 has 4 divisors (see below), whose sum is σ = 1322349172992. Its totient is φ = 1322291447452.

The previous prime is 1322320310159. The next prime is 1322320310273. The reversal of 1322320310221 is 1220130232231.

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 a cyclic number.

It is not a de Polignac number, because 1322320310221 - 2¹¹ = 1322320308173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1322320310192 and 1322320310201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322320310021) 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, 14362555 + ... + 14454328.

It is an arithmetic number, because the mean of its divisors is an integer number (330587293248).

Almost surely, 2^{1322320310221} is an apocalyptic number.

It is an amenable number.

1322320310221 is a deficient number, since it is larger than the sum of its proper divisors (28862771).

1322320310221 is an equidigital number, since it uses as much as digits as its factorization.

1322320310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28862770.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1322320310221 its reverse (1220130232231), we get a palindrome (2542450542452).

The spelling of 1322320310221 in words is "one trillion, three hundred twenty-two billion, three hundred twenty million, three hundred ten thousand, two hundred twenty-one".