222345121613 has 2 divisors, whose sum is σ = 222345121614. Its totient is φ = 222345121612.

The previous prime is 222345121591. The next prime is 222345121619. The reversal of 222345121613 is 316121543222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179629325929 + 42715795684 = 423827^2 + 206678^2 .

It is a cyclic number.

It is not a de Polignac number, because 222345121613 - 2¹⁶ = 222345056077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222345121613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222345121619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111172560806 + 111172560807.

It is an arithmetic number, because the mean of its divisors is an integer number (111172560807).

Almost surely, 2^222345121613 is an apocalyptic number.

It is an amenable number.

222345121613 is a deficient number, since it is larger than the sum of its proper divisors (1).

222345121613 is an equidigital number, since it uses as much as digits as its factorization.

222345121613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

Adding to 222345121613 its reverse (316121543222), we get a palindrome (538466664835).

The spelling of 222345121613 in words is "two hundred twenty-two billion, three hundred forty-five million, one hundred twenty-one thousand, six hundred thirteen".