1222686743 has 2 divisors, whose sum is σ = 1222686744. Its totient is φ = 1222686742.

The previous prime is 1222686721. The next prime is 1222686761. The reversal of 1222686743 is 3476862221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222686743 - 2²⁶ = 1155577879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222686743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222686943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611343371 + 611343372.

It is an arithmetic number, because the mean of its divisors is an integer number (611343372).

Almost surely, 2^1222686743 is an apocalyptic number.

1222686743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222686743 is an equidigital number, since it uses as much as digits as its factorization.

1222686743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 1222686743 is about 34966.9378556373. The cubic root of 1222686743 is about 1069.3135443278.

The spelling of 1222686743 in words is "one billion, two hundred twenty-two million, six hundred eighty-six thousand, seven hundred forty-three".