12001100202101 has 2 divisors, whose sum is σ = 12001100202102. Its totient is φ = 12001100202100.

The previous prime is 12001100202067. The next prime is 12001100202167. The reversal of 12001100202101 is 10120200110021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11960350723876 + 40749478225 = 3458374^2 + 201865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001100202101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001100202181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000550101050 + 6000550101051.

It is an arithmetic number, because the mean of its divisors is an integer number (6000550101051).

Almost surely, 2^{12001100202101} is an apocalyptic number.

It is an amenable number.

12001100202101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001100202101 is an equidigital number, since it uses as much as digits as its factorization.

12001100202101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12001100202101 its reverse (10120200110021), we get a palindrome (22121300312122).

The spelling of 12001100202101 in words is "twelve trillion, one billion, one hundred million, two hundred two thousand, one hundred one".