121104422220217 has 2 divisors, whose sum is σ = 121104422220218. Its totient is φ = 121104422220216.

The previous prime is 121104422220191. The next prime is 121104422220247. The reversal of 121104422220217 is 712022224401121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117487042652736 + 3617379567481 = 10839144^2 + 1901941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121104422220217 is a prime.

It is not a weakly prime, because it can be changed into another prime (121104422220247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60552211110108 + 60552211110109.

It is an arithmetic number, because the mean of its divisors is an integer number (60552211110109).

Almost surely, 2^{121104422220217} is an apocalyptic number.

It is an amenable number.

121104422220217 is a deficient number, since it is larger than the sum of its proper divisors (1).

121104422220217 is an equidigital number, since it uses as much as digits as its factorization.

121104422220217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 31.

Adding to 121104422220217 its reverse (712022224401121), we get a palindrome (833126646621338).

The spelling of 121104422220217 in words is "one hundred twenty-one trillion, one hundred four billion, four hundred twenty-two million, two hundred twenty thousand, two hundred seventeen".