1222043443 has 2 divisors, whose sum is σ = 1222043444. Its totient is φ = 1222043442.

The previous prime is 1222043423. The next prime is 1222043447. The reversal of 1222043443 is 3443402221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222043443 - 2⁵ = 1222043411 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222043447) 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, 611021721 + 611021722.

It is an arithmetic number, because the mean of its divisors is an integer number (611021722).

Almost surely, 2^1222043443 is an apocalyptic number.

1222043443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222043443 is an equidigital number, since it uses as much as digits as its factorization.

1222043443 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1222043443 is about 34957.7379559948. The cubic root of 1222043443 is about 1069.1259765027.

Adding to 1222043443 its reverse (3443402221), we get a palindrome (4665445664).

The spelling of 1222043443 in words is "one billion, two hundred twenty-two million, forty-three thousand, four hundred forty-three".