1000001200801 has 2 divisors, whose sum is σ = 1000001200802. Its totient is φ = 1000001200800.

The previous prime is 1000001200753. The next prime is 1000001200829. The reversal of 1000001200801 is 1080021000001.

1000001200801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 530195141025 + 469806059776 = 728145^2 + 685424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000001200801 - 2²⁹ = 999464329889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000011200801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000600400 + 500000600401.

It is an arithmetic number, because the mean of its divisors is an integer number (500000600401).

Almost surely, 2^{1000001200801} is an apocalyptic number.

It is an amenable number.

1000001200801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000001200801 is an equidigital number, since it uses as much as digits as its factorization.

1000001200801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1000001200801 its reverse (1080021000001), we get a palindrome (2080022200802).

The spelling of 1000001200801 in words is "one trillion, one million, two hundred thousand, eight hundred one".