122012120117 has 2 divisors, whose sum is σ = 122012120118. Its totient is φ = 122012120116.

The previous prime is 122012120057. The next prime is 122012120149. The reversal of 122012120117 is 711021210221.

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., 106353602161 + 15658517956 = 326119^2 + 125134^2 .

It is a cyclic number.

It is not a de Polignac number, because 122012120117 - 2⁶ = 122012120053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122012120017) 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, 61006060058 + 61006060059.

It is an arithmetic number, because the mean of its divisors is an integer number (61006060059).

Almost surely, 2^122012120117 is an apocalyptic number.

It is an amenable number.

122012120117 is a deficient number, since it is larger than the sum of its proper divisors (1).

122012120117 is an equidigital number, since it uses as much as digits as its factorization.

122012120117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 122012120117 its reverse (711021210221), we get a palindrome (833033330338).

The spelling of 122012120117 in words is "one hundred twenty-two billion, twelve million, one hundred twenty thousand, one hundred seventeen".