12001210020001 has 2 divisors, whose sum is σ = 12001210020002. Its totient is φ = 12001210020000.

The previous prime is 12001210019879. The next prime is 12001210020029. The reversal of 12001210020001 is 10002001210021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11436578003601 + 564632016400 = 3381801^2 + 751420^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001210020001 - 2⁷ = 12001210019873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12001210020001.

It is not a weakly prime, because it can be changed into another prime (12001210920001) 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, 6000605010000 + 6000605010001.

It is an arithmetic number, because the mean of its divisors is an integer number (6000605010001).

Almost surely, 2^{12001210020001} is an apocalyptic number.

It is an amenable number.

12001210020001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001210020001 is an equidigital number, since it uses as much as digits as its factorization.

12001210020001 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 10.

Adding to 12001210020001 its reverse (10002001210021), we get a palindrome (22003211230022).

The spelling of 12001210020001 in words is "twelve trillion, one billion, two hundred ten million, twenty thousand, one".