12011000110121 has 2 divisors, whose sum is σ = 12011000110122. Its totient is φ = 12011000110120.

The previous prime is 12011000110061. The next prime is 12011000110129. The reversal of 12011000110121 is 12101100011021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9994418346025 + 2016581764096 = 3161395^2 + 1420064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011000110121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12011000110129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005500055060 + 6005500055061.

It is an arithmetic number, because the mean of its divisors is an integer number (6005500055061).

Almost surely, 2^{12011000110121} is an apocalyptic number.

It is an amenable number.

12011000110121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011000110121 is an equidigital number, since it uses as much as digits as its factorization.

12011000110121 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 12011000110121 its reverse (12101100011021), we get a palindrome (24112100121142).

The spelling of 12011000110121 in words is "twelve trillion, eleven billion, one hundred ten thousand, one hundred twenty-one".