222111222013 has 2 divisors, whose sum is σ = 222111222014. Its totient is φ = 222111222012.

The previous prime is 222111221929. The next prime is 222111222031. The reversal of 222111222013 is 310222111222.

Together with next prime (222111222031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172276463844 + 49834758169 = 415062^2 + 223237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222111222013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222111222083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055611006 + 111055611007.

It is an arithmetic number, because the mean of its divisors is an integer number (111055611007).

Almost surely, 2^222111222013 is an apocalyptic number.

It is an amenable number.

222111222013 is a deficient number, since it is larger than the sum of its proper divisors (1).

222111222013 is an equidigital number, since it uses as much as digits as its factorization.

222111222013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222111222013 its reverse (310222111222), we get a palindrome (532333333235).

The spelling of 222111222013 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, thirteen".