122320100211217 has 2 divisors, whose sum is σ = 122320100211218. Its totient is φ = 122320100211216.

The previous prime is 122320100211193. The next prime is 122320100211343. The reversal of 122320100211217 is 712112001023221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116344612851856 + 5975487359361 = 10786316^2 + 2444481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122320100211217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122320100211191 and 122320100211200.

It is not a weakly prime, because it can be changed into another prime (122320100811217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61160050105608 + 61160050105609.

It is an arithmetic number, because the mean of its divisors is an integer number (61160050105609).

Almost surely, 2^{122320100211217} is an apocalyptic number.

It is an amenable number.

122320100211217 is a deficient number, since it is larger than the sum of its proper divisors (1).

122320100211217 is an equidigital number, since it uses as much as digits as its factorization.

122320100211217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 122320100211217 its reverse (712112001023221), we get a palindrome (834432101234438).

The spelling of 122320100211217 in words is "one hundred twenty-two trillion, three hundred twenty billion, one hundred million, two hundred eleven thousand, two hundred seventeen".