12012002617 has 2 divisors, whose sum is σ = 12012002618. Its totient is φ = 12012002616.

The previous prime is 12012002591. The next prime is 12012002621. The reversal of 12012002617 is 71620021021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11659464441 + 352538176 = 107979^2 + 18776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012002617 is a prime.

It is not a weakly prime, because it can be changed into another prime (12012102617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006001308 + 6006001309.

It is an arithmetic number, because the mean of its divisors is an integer number (6006001309).

Almost surely, 2^12012002617 is an apocalyptic number.

It is an amenable number.

12012002617 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012002617 is an equidigital number, since it uses as much as digits as its factorization.

12012002617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 12012002617 its reverse (71620021021), we get a palindrome (83632023638).

The spelling of 12012002617 in words is "twelve billion, twelve million, two thousand, six hundred seventeen".