122221221119909 has 2 divisors, whose sum is σ = 122221221119910. Its totient is φ = 122221221119908.

The previous prime is 122221221119867. The next prime is 122221221120017. The reversal of 122221221119909 is 909911122122221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96281329413025 + 25939891706884 = 9812305^2 + 5093122^2 .

It is a cyclic number.

It is not a de Polignac number, because 122221221119909 - 2⁴⁴ = 104629035075493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122221221119909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122221221115909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110610559954 + 61110610559955.

It is an arithmetic number, because the mean of its divisors is an integer number (61110610559955).

Almost surely, 2^{122221221119909} is an apocalyptic number.

It is an amenable number.

122221221119909 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221221119909 is an equidigital number, since it uses as much as digits as its factorization.

122221221119909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 122221221119909 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred nineteen thousand, nine hundred nine".