122120506393 has 2 divisors, whose sum is σ = 122120506394. Its totient is φ = 122120506392.

The previous prime is 122120506331. The next prime is 122120506397. The reversal of 122120506393 is 393605021221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120078189529 + 2042316864 = 346523^2 + 45192^2 .

It is an emirp because it is prime and its reverse (393605021221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122120506393 - 2³³ = 113530571801 is a prime.

It is not a weakly prime, because it can be changed into another prime (122120506397) 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, 61060253196 + 61060253197.

It is an arithmetic number, because the mean of its divisors is an integer number (61060253197).

Almost surely, 2^122120506393 is an apocalyptic number.

It is an amenable number.

122120506393 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120506393 is an equidigital number, since it uses as much as digits as its factorization.

122120506393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 122120506393 in words is "one hundred twenty-two billion, one hundred twenty million, five hundred six thousand, three hundred ninety-three".