122709389441 has 2 divisors, whose sum is σ = 122709389442. Its totient is φ = 122709389440.

The previous prime is 122709389377. The next prime is 122709389449. The reversal of 122709389441 is 144983907221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122287292416 + 422097025 = 349696^2 + 20545^2 .

It is a cyclic number.

It is not a de Polignac number, because 122709389441 - 2⁶ = 122709389377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122709389441.

It is not a weakly prime, because it can be changed into another prime (122709389449) 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, 61354694720 + 61354694721.

It is an arithmetic number, because the mean of its divisors is an integer number (61354694721).

Almost surely, 2^122709389441 is an apocalyptic number.

It is an amenable number.

122709389441 is a deficient number, since it is larger than the sum of its proper divisors (1).

122709389441 is an equidigital number, since it uses as much as digits as its factorization.

122709389441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 122709389441 in words is "one hundred twenty-two billion, seven hundred nine million, three hundred eighty-nine thousand, four hundred forty-one".