12102000111121 has 2 divisors, whose sum is σ = 12102000111122. Its totient is φ = 12102000111120.

The previous prime is 12102000111119. The next prime is 12102000111181. The reversal of 12102000111121 is 12111100020121.

It is a happy number.

12102000111121 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., 10402011796225 + 1699988314896 = 3225215^2 + 1303836^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102000111121 - 2¹ = 12102000111119 is a prime.

Together with 12102000111119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12102000111101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051000055560 + 6051000055561.

It is an arithmetic number, because the mean of its divisors is an integer number (6051000055561).

Almost surely, 2^{12102000111121} is an apocalyptic number.

It is an amenable number.

12102000111121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102000111121 is an equidigital number, since it uses as much as digits as its factorization.

12102000111121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12102000111121 its reverse (12111100020121), we get a palindrome (24213100131242).

The spelling of 12102000111121 in words is "twelve trillion, one hundred two billion, one hundred eleven thousand, one hundred twenty-one".