122121507317 has 2 divisors, whose sum is σ = 122121507318. Its totient is φ = 122121507316.

The previous prime is 122121507289. The next prime is 122121507329. The reversal of 122121507317 is 713705121221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89162557201 + 32958950116 = 298601^2 + 181546^2 .

It is a cyclic number.

It is not a de Polignac number, because 122121507317 - 2¹⁶ = 122121441781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121507017) 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, 61060753658 + 61060753659.

It is an arithmetic number, because the mean of its divisors is an integer number (61060753659).

Almost surely, 2^122121507317 is an apocalyptic number.

It is an amenable number.

122121507317 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121507317 is an equidigital number, since it uses as much as digits as its factorization.

122121507317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 32.

Adding to 122121507317 its reverse (713705121221), we get a palindrome (835826628538).

The spelling of 122121507317 in words is "one hundred twenty-two billion, one hundred twenty-one million, five hundred seven thousand, three hundred seventeen".