12105203500211 has 2 divisors, whose sum is σ = 12105203500212. Its totient is φ = 12105203500210.

The previous prime is 12105203500199. The next prime is 12105203500217. The reversal of 12105203500211 is 11200530250121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12105203500211 - 2³⁰ = 12104129758387 is a prime.

It is not a weakly prime, because it can be changed into another prime (12105203500217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052601750105 + 6052601750106.

It is an arithmetic number, because the mean of its divisors is an integer number (6052601750106).

Almost surely, 2^{12105203500211} is an apocalyptic number.

12105203500211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105203500211 is an equidigital number, since it uses as much as digits as its factorization.

12105203500211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 12105203500211 its reverse (11200530250121), we get a palindrome (23305733750332).

The spelling of 12105203500211 in words is "twelve trillion, one hundred five billion, two hundred three million, five hundred thousand, two hundred eleven".