12213200312017 has 2 divisors, whose sum is σ = 12213200312018. Its totient is φ = 12213200312016.

The previous prime is 12213200312011. The next prime is 12213200312041. The reversal of 12213200312017 is 71021300231221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9111801067776 + 3101399244241 = 3018576^2 + 1761079^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213200312017 - 2¹⁵ = 12213200279249 is a prime.

It is a super-2 number, since 2×12213200312017² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12213200311982 and 12213200312000.

It is not a weakly prime, because it can be changed into another prime (12213200312011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106600156008 + 6106600156009.

It is an arithmetic number, because the mean of its divisors is an integer number (6106600156009).

Almost surely, 2^{12213200312017} is an apocalyptic number.

It is an amenable number.

12213200312017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213200312017 is an equidigital number, since it uses as much as digits as its factorization.

12213200312017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 12213200312017 its reverse (71021300231221), we get a palindrome (83234500543238).

The spelling of 12213200312017 in words is "twelve trillion, two hundred thirteen billion, two hundred million, three hundred twelve thousand, seventeen".