12220010211217 has 2 divisors, whose sum is σ = 12220010211218. Its totient is φ = 12220010211216.

The previous prime is 12220010211151. The next prime is 12220010211221. The reversal of 12220010211217 is 71211201002221.

12220010211217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11452816408401 + 767193802816 = 3384201^2 + 875896^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220010211217 - 2⁷ = 12220010211089 is a prime.

It is not a weakly prime, because it can be changed into another prime (12220010211317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110005105608 + 6110005105609.

It is an arithmetic number, because the mean of its divisors is an integer number (6110005105609).

Almost surely, 2^{12220010211217} is an apocalyptic number.

It is an amenable number.

12220010211217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220010211217 is an equidigital number, since it uses as much as digits as its factorization.

12220010211217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 12220010211217 its reverse (71211201002221), we get a palindrome (83431211213438).

The spelling of 12220010211217 in words is "twelve trillion, two hundred twenty billion, ten million, two hundred eleven thousand, two hundred seventeen".