1222985347 has 2 divisors, whose sum is σ = 1222985348. Its totient is φ = 1222985346.

The previous prime is 1222985311. The next prime is 1222985353. The reversal of 1222985347 is 7435892221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222985347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222985047) 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, 611492673 + 611492674.

It is an arithmetic number, because the mean of its divisors is an integer number (611492674).

Almost surely, 2^1222985347 is an apocalyptic number.

1222985347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222985347 is an equidigital number, since it uses as much as digits as its factorization.

1222985347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The square root of 1222985347 is about 34971.2073998025. The cubic root of 1222985347 is about 1069.4005863315.

The spelling of 1222985347 in words is "one billion, two hundred twenty-two million, nine hundred eighty-five thousand, three hundred forty-seven".