1222143343 has 2 divisors, whose sum is σ = 1222143344. Its totient is φ = 1222143342.

The previous prime is 1222143323. The next prime is 1222143353. The reversal of 1222143343 is 3433412221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222143343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222143323) 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, 611071671 + 611071672.

It is an arithmetic number, because the mean of its divisors is an integer number (611071672).

Almost surely, 2^1222143343 is an apocalyptic number.

1222143343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222143343 is an equidigital number, since it uses as much as digits as its factorization.

1222143343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

The square root of 1222143343 is about 34959.1667949910. The cubic root of 1222143343 is about 1069.1551087935.

Adding to 1222143343 its reverse (3433412221), we get a palindrome (4655555564).

The spelling of 1222143343 in words is "one billion, two hundred twenty-two million, one hundred forty-three thousand, three hundred forty-three".