222111313 has 2 divisors, whose sum is σ = 222111314. Its totient is φ = 222111312.

The previous prime is 222111293. The next prime is 222111343. The reversal of 222111313 is 313111222.

222111313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163251729 + 58859584 = 12777^2 + 7672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222111313 is a prime.

It is not a weakly prime, because it can be changed into another prime (222111343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055656 + 111055657.

It is an arithmetic number, because the mean of its divisors is an integer number (111055657).

Almost surely, 2^222111313 is an apocalyptic number.

It is an amenable number.

222111313 is a deficient number, since it is larger than the sum of its proper divisors (1).

222111313 is an equidigital number, since it uses as much as digits as its factorization.

222111313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 16.

The square root of 222111313 is about 14903.3993773233. The cubic root of 222111313 is about 605.6060797928.

Adding to 222111313 its reverse (313111222), we get a palindrome (535222535).

Subtracting 222111313 from its reverse (313111222), we obtain a palindrome (90999909).

The spelling of 222111313 in words is "two hundred twenty-two million, one hundred eleven thousand, three hundred thirteen".