12111110201 has 2 divisors, whose sum is σ = 12111110202. Its totient is φ = 12111110200.

The previous prime is 12111110113. The next prime is 12111110203. The reversal of 12111110201 is 10201111121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10064904976 + 2046205225 = 100324^2 + 45235^2 .

It is an emirp because it is prime and its reverse (10201111121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12111110201 - 2¹⁴ = 12111093817 is a prime.

Together with 12111110203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12111110203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055555100 + 6055555101.

It is an arithmetic number, because the mean of its divisors is an integer number (6055555101).

Almost surely, 2^12111110201 is an apocalyptic number.

It is an amenable number.

12111110201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111110201 is an equidigital number, since it uses as much as digits as its factorization.

12111110201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12111110201 its reverse (10201111121), we get a palindrome (22312221322).

The spelling of 12111110201 in words is "twelve billion, one hundred eleven million, one hundred ten thousand, two hundred one".