2221320130213 has 4 divisors (see below), whose sum is σ = 2237534145900. Its totient is φ = 2205106114528.

The previous prime is 2221320130121. The next prime is 2221320130217. The reversal of 2221320130213 is 3120310231222.

2221320130213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 429237246244 + 1792082883969 = 655162^2 + 1338687^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221320130213 - 2²⁹ = 2220783259301 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 (2221320130217) 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, 8107007638 + ... + 8107007911.

It is an arithmetic number, because the mean of its divisors is an integer number (559383536475).

Almost surely, 2^{2221320130213} is an apocalyptic number.

It is an amenable number.

2221320130213 is a deficient number, since it is larger than the sum of its proper divisors (16214015687).

2221320130213 is a wasteful number, since it uses less digits than its factorization.

2221320130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16214015686.

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

Adding to 2221320130213 its reverse (3120310231222), we get a palindrome (5341630361435).

The spelling of 2221320130213 in words is "two trillion, two hundred twenty-one billion, three hundred twenty million, one hundred thirty thousand, two hundred thirteen".