222006613 has 2 divisors, whose sum is σ = 222006614. Its totient is φ = 222006612.

The previous prime is 222006611. The next prime is 222006619. The reversal of 222006613 is 316600222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203404644 + 18601969 = 14262^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 222006613 - 2¹ = 222006611 is a prime.

Together with 222006611, 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 (222006611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111003306 + 111003307.

It is an arithmetic number, because the mean of its divisors is an integer number (111003307).

Almost surely, 2^222006613 is an apocalyptic number.

It is an amenable number.

222006613 is a deficient number, since it is larger than the sum of its proper divisors (1).

222006613 is an equidigital number, since it uses as much as digits as its factorization.

222006613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 222006613 is about 14899.8863418484. The cubic root of 222006613 is about 605.5109069095.

Adding to 222006613 its reverse (316600222), we get a palindrome (538606835).

The spelling of 222006613 in words is "two hundred twenty-two million, six thousand, six hundred thirteen".