1202000002001 has 2 divisors, whose sum is σ = 1202000002002. Its totient is φ = 1202000002000.

The previous prime is 1202000001971. The next prime is 1202000002039. The reversal of 1202000002001 is 1002000002021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 991249228225 + 210750773776 = 995615^2 + 459076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202000002001 - 2¹⁰ = 1202000000977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202000002001.

It is not a weakly prime, because it can be changed into another prime (1202000005001) 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, 601000001000 + 601000001001.

It is an arithmetic number, because the mean of its divisors is an integer number (601000001001).

Almost surely, 2^{1202000002001} is an apocalyptic number.

It is an amenable number.

1202000002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202000002001 is an equidigital number, since it uses as much as digits as its factorization.

1202000002001 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 8.

Adding to 1202000002001 its reverse (1002000002021), we get a palindrome (2204000004022).

The spelling of 1202000002001 in words is "one trillion, two hundred two billion, two thousand, one".