2221320113221 has 64 divisors (see below), whose sum is σ = 2624282115840. Its totient is φ = 1857924956160.

The previous prime is 2221320113191. The next prime is 2221320113237. The reversal of 2221320113221 is 1223110231222.

It is a cyclic number.

It is not a de Polignac number, because 2221320113221 - 2⁵ = 2221320113189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221320113192 and 2221320113201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221320113021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 461139405 + ... + 461144221.

It is an arithmetic number, because the mean of its divisors is an integer number (41004408060).

Almost surely, 2^{2221320113221} is an apocalyptic number.

It is an amenable number.

2221320113221 is a deficient number, since it is larger than the sum of its proper divisors (402962002619).

2221320113221 is a wasteful number, since it uses less digits than its factorization.

2221320113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2221320113221 its reverse (1223110231222), we get a palindrome (3444430344443).

The spelling of 2221320113221 in words is "two trillion, two hundred twenty-one billion, three hundred twenty million, one hundred thirteen thousand, two hundred twenty-one".