122340222209 has 2 divisors, whose sum is σ = 122340222210. Its totient is φ = 122340222208.

The previous prime is 122340222181. The next prime is 122340222281. The reversal of 122340222209 is 902222043221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113191873600 + 9148348609 = 336440^2 + 95647^2 .

It is an emirp because it is prime and its reverse (902222043221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122340222209 - 2⁸ = 122340221953 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (122340222409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61170111104 + 61170111105.

It is an arithmetic number, because the mean of its divisors is an integer number (61170111105).

Almost surely, 2^122340222209 is an apocalyptic number.

It is an amenable number.

122340222209 is a deficient number, since it is larger than the sum of its proper divisors (1).

122340222209 is an equidigital number, since it uses as much as digits as its factorization.

122340222209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 122340222209 in words is "one hundred twenty-two billion, three hundred forty million, two hundred twenty-two thousand, two hundred nine".