1002001120201 has 2 divisors, whose sum is σ = 1002001120202. Its totient is φ = 1002001120200.

The previous prime is 1002001120187. The next prime is 1002001120207. The reversal of 1002001120201 is 1020211002001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 822141158400 + 179859961801 = 906720^2 + 424099^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002001120201 - 2²⁵ = 1001967565769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002001120207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501000560100 + 501000560101.

It is an arithmetic number, because the mean of its divisors is an integer number (501000560101).

Almost surely, 2^{1002001120201} is an apocalyptic number.

It is an amenable number.

1002001120201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002001120201 is an equidigital number, since it uses as much as digits as its factorization.

1002001120201 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 1002001120201 its reverse (1020211002001), we get a palindrome (2022212122202).

The spelling of 1002001120201 in words is "one trillion, two billion, one million, one hundred twenty thousand, two hundred one".