122040255209 has 2 divisors, whose sum is σ = 122040255210. Its totient is φ = 122040255208.

The previous prime is 122040255193. The next prime is 122040255263. The reversal of 122040255209 is 902552040221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118036909225 + 4003345984 = 343565^2 + 63272^2 .

It is a cyclic number.

It is not a de Polignac number, because 122040255209 - 2⁴ = 122040255193 is a prime.

It is not a weakly prime, because it can be changed into another prime (122040255509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61020127604 + 61020127605.

It is an arithmetic number, because the mean of its divisors is an integer number (61020127605).

Almost surely, 2^122040255209 is an apocalyptic number.

It is an amenable number.

122040255209 is a deficient number, since it is larger than the sum of its proper divisors (1).

122040255209 is an equidigital number, since it uses as much as digits as its factorization.

122040255209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 122040255209 in words is "one hundred twenty-two billion, forty million, two hundred fifty-five thousand, two hundred nine".