12212027017 has 2 divisors, whose sum is σ = 12212027018. Its totient is φ = 12212027016.

The previous prime is 12212026999. The next prime is 12212027029. The reversal of 12212027017 is 71072021221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6285952656 + 5926074361 = 79284^2 + 76981^2 .

It is an emirp because it is prime and its reverse (71072021221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12212027017 - 2⁷ = 12212026889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12212026982 and 12212027000.

It is not a weakly prime, because it can be changed into another prime (12212027057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106013508 + 6106013509.

It is an arithmetic number, because the mean of its divisors is an integer number (6106013509).

Almost surely, 2^12212027017 is an apocalyptic number.

It is an amenable number.

12212027017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212027017 is an equidigital number, since it uses as much as digits as its factorization.

12212027017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 25.

Adding to 12212027017 its reverse (71072021221), we get a palindrome (83284048238).

The spelling of 12212027017 in words is "twelve billion, two hundred twelve million, twenty-seven thousand, seventeen".