222246613 has 2 divisors, whose sum is σ = 222246614. Its totient is φ = 222246612.

The previous prime is 222246611. The next prime is 222246643. The reversal of 222246613 is 316642222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174055249 + 48191364 = 13193^2 + 6942^2 .

It is a cyclic number.

It is not a de Polignac number, because 222246613 - 2¹ = 222246611 is a prime.

Together with 222246611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222246611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111123306 + 111123307.

It is an arithmetic number, because the mean of its divisors is an integer number (111123307).

Almost surely, 2^222246613 is an apocalyptic number.

It is an amenable number.

222246613 is a deficient number, since it is larger than the sum of its proper divisors (1).

222246613 is an equidigital number, since it uses as much as digits as its factorization.

222246613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

The square root of 222246613 is about 14907.9379191087. The cubic root of 222246613 is about 605.7290239589.

Adding to 222246613 its reverse (316642222), we get a palindrome (538888835).

The spelling of 222246613 in words is "two hundred twenty-two million, two hundred forty-six thousand, six hundred thirteen".