12121000100207 has 2 divisors, whose sum is σ = 12121000100208. Its totient is φ = 12121000100206.

The previous prime is 12121000100203. The next prime is 12121000100221. The reversal of 12121000100207 is 70200100012121.

It is a weak prime.

It is an emirp because it is prime and its reverse (70200100012121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12121000100207 - 2² = 12121000100203 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121000100201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060500050103 + 6060500050104.

It is an arithmetic number, because the mean of its divisors is an integer number (6060500050104).

Almost surely, 2^{12121000100207} is an apocalyptic number.

12121000100207 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121000100207 is an equidigital number, since it uses as much as digits as its factorization.

12121000100207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 12121000100207 its reverse (70200100012121), we get a palindrome (82321100112328).

The spelling of 12121000100207 in words is "twelve trillion, one hundred twenty-one billion, one hundred thousand, two hundred seven".