1000222243 has 2 divisors, whose sum is σ = 1000222244. Its totient is φ = 1000222242.

The previous prime is 1000222219. The next prime is 1000222261. The reversal of 1000222243 is 3422220001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000222243 - 2⁵ = 1000222211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000222213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500111121 + 500111122.

It is an arithmetic number, because the mean of its divisors is an integer number (500111122).

Almost surely, 2^1000222243 is an apocalyptic number.

1000222243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000222243 is an equidigital number, since it uses as much as digits as its factorization.

1000222243 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 16.

The square root of 1000222243 is about 31626.2903768368. The cubic root of 1000222243 is about 1000.0740755127.

Adding to 1000222243 its reverse (3422220001), we get a palindrome (4422442244).

The spelling of 1000222243 in words is "one billion, two hundred twenty-two thousand, two hundred forty-three".