2243221243 has 2 divisors, whose sum is σ = 2243221244. Its totient is φ = 2243221242.

The previous prime is 2243221231. The next prime is 2243221261. The reversal of 2243221243 is 3421223422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2243221243 - 2¹³ = 2243213051 is a prime.

It is not a weakly prime, because it can be changed into another prime (2243228243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121610621 + 1121610622.

It is an arithmetic number, because the mean of its divisors is an integer number (1121610622).

Almost surely, 2^2243221243 is an apocalyptic number.

2243221243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243221243 is an equidigital number, since it uses as much as digits as its factorization.

2243221243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 25.

The square root of 2243221243 is about 47362.6566294586. The cubic root of 2243221243 is about 1309.0534200639.

Adding to 2243221243 its reverse (3421223422), we get a palindrome (5664444665).

The spelling of 2243221243 in words is "two billion, two hundred forty-three million, two hundred twenty-one thousand, two hundred forty-three".