12000120012217 has 2 divisors, whose sum is σ = 12000120012218. Its totient is φ = 12000120012216.

The previous prime is 12000120012193. The next prime is 12000120012227. The reversal of 12000120012217 is 71221002100021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11962598772601 + 37521239616 = 3458699^2 + 193704^2 .

It is an emirp because it is prime and its reverse (71221002100021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12000120012217 - 2³⁵ = 11965760273849 is a prime.

It is a super-2 number, since 2×12000120012217² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12000120012194 and 12000120012203.

It is not a weakly prime, because it can be changed into another prime (12000120012227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000060006108 + 6000060006109.

It is an arithmetic number, because the mean of its divisors is an integer number (6000060006109).

Almost surely, 2^{12000120012217} is an apocalyptic number.

It is an amenable number.

12000120012217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000120012217 is an equidigital number, since it uses as much as digits as its factorization.

12000120012217 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 19.

Adding to 12000120012217 its reverse (71221002100021), we get a palindrome (83221122112238).

The spelling of 12000120012217 in words is "twelve trillion, one hundred twenty million, twelve thousand, two hundred seventeen".