12217203701 has 2 divisors, whose sum is σ = 12217203702. Its totient is φ = 12217203700.

The previous prime is 12217203671. The next prime is 12217203721. The reversal of 12217203701 is 10730271221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11352902500 + 864301201 = 106550^2 + 29399^2 .

It is a cyclic number.

It is not a de Polignac number, because 12217203701 - 2³⁰ = 11143461877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12217203721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6108601850 + 6108601851.

It is an arithmetic number, because the mean of its divisors is an integer number (6108601851).

Almost surely, 2^12217203701 is an apocalyptic number.

It is an amenable number.

12217203701 is a deficient number, since it is larger than the sum of its proper divisors (1).

12217203701 is an equidigital number, since it uses as much as digits as its factorization.

12217203701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 26.

Adding to 12217203701 its reverse (10730271221), we get a palindrome (22947474922).

The spelling of 12217203701 in words is "twelve billion, two hundred seventeen million, two hundred three thousand, seven hundred one".