12102002100121 has 2 divisors, whose sum is σ = 12102002100122. Its totient is φ = 12102002100120.

The previous prime is 12102002100101. The next prime is 12102002100137. The reversal of 12102002100121 is 12100120020121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10447084518025 + 1654917582096 = 3232195^2 + 1286436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102002100121 is a prime.

It is not a weakly prime, because it can be changed into another prime (12102002100101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051001050060 + 6051001050061.

It is an arithmetic number, because the mean of its divisors is an integer number (6051001050061).

Almost surely, 2^{12102002100121} is an apocalyptic number.

It is an amenable number.

12102002100121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102002100121 is an equidigital number, since it uses as much as digits as its factorization.

12102002100121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12102002100121 its reverse (12100120020121), we get a palindrome (24202122120242).

The spelling of 12102002100121 in words is "twelve trillion, one hundred two billion, two million, one hundred thousand, one hundred twenty-one".