1222244421709 has 2 divisors, whose sum is σ = 1222244421710. Its totient is φ = 1222244421708.

The previous prime is 1222244421691. The next prime is 1222244421731. The reversal of 1222244421709 is 9071244422221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 860911189609 + 361333232100 = 927853^2 + 601110^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222244421709 - 2¹⁵ = 1222244388941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222244421779) 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, 611122210854 + 611122210855.

It is an arithmetic number, because the mean of its divisors is an integer number (611122210855).

Almost surely, 2^{1222244421709} is an apocalyptic number.

It is an amenable number.

1222244421709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222244421709 is an equidigital number, since it uses as much as digits as its factorization.

1222244421709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 1222244421709 in words is "one trillion, two hundred twenty-two billion, two hundred forty-four million, four hundred twenty-one thousand, seven hundred nine".