20001020000201 has 4 divisors (see below), whose sum is σ = 20001393562500. Its totient is φ = 20000646437904.

The previous prime is 20001020000161. The next prime is 20001020000219. The reversal of 20001020000201 is 10200002010002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2763244614601 + 17237775385600 = 1662301^2 + 4151840^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001020000201 - 2¹⁸ = 20001019738057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001020000251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186700826 + ... + 186807923.

It is an arithmetic number, because the mean of its divisors is an integer number (5000348390625).

Almost surely, 2^{20001020000201} is an apocalyptic number.

It is an amenable number.

20001020000201 is a deficient number, since it is larger than the sum of its proper divisors (373562299).

20001020000201 is an equidigital number, since it uses as much as digits as its factorization.

20001020000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373562298.

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

Adding to 20001020000201 its reverse (10200002010002), we get a palindrome (30201022010203).

The spelling of 20001020000201 in words is "twenty trillion, one billion, twenty million, two hundred one", and thus it is an aban number.