222321121313 has 2 divisors, whose sum is σ = 222321121314. Its totient is φ = 222321121312.

The previous prime is 222321121301. The next prime is 222321121513. The reversal of 222321121313 is 313121123222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199962797584 + 22358323729 = 447172^2 + 149527^2 .

It is a cyclic number.

It is not a de Polignac number, because 222321121313 - 2¹⁰ = 222321120289 is a prime.

It is not a weakly prime, because it can be changed into another prime (222321121513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160560656 + 111160560657.

It is an arithmetic number, because the mean of its divisors is an integer number (111160560657).

Almost surely, 2^222321121313 is an apocalyptic number.

It is an amenable number.

222321121313 is a deficient number, since it is larger than the sum of its proper divisors (1).

222321121313 is an equidigital number, since it uses as much as digits as its factorization.

222321121313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

Adding to 222321121313 its reverse (313121123222), we get a palindrome (535442244535).

The spelling of 222321121313 in words is "two hundred twenty-two billion, three hundred twenty-one million, one hundred twenty-one thousand, three hundred thirteen".