12102116501 has 2 divisors, whose sum is σ = 12102116502. Its totient is φ = 12102116500.

The previous prime is 12102116497. The next prime is 12102116549. The reversal of 12102116501 is 10561120121.

12102116501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10619096401 + 1483020100 = 103049^2 + 38510^2 .

It is an emirp because it is prime and its reverse (10561120121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12102116501 - 2² = 12102116497 is a prime.

It is a super-2 number, since 2×12102116501² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102166501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051058250 + 6051058251.

It is an arithmetic number, because the mean of its divisors is an integer number (6051058251).

Almost surely, 2^12102116501 is an apocalyptic number.

It is an amenable number.

12102116501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102116501 is an equidigital number, since it uses as much as digits as its factorization.

12102116501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 12102116501 its reverse (10561120121), we get a palindrome (22663236622).

The spelling of 12102116501 in words is "twelve billion, one hundred two million, one hundred sixteen thousand, five hundred one".