2011020020201 has 4 divisors (see below), whose sum is σ = 2017883570052. Its totient is φ = 2004156470352.

The previous prime is 2011020020189. The next prime is 2011020020237. The reversal of 2011020020201 is 1020200201102.

It is a happy number.

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 1939223353600 + 71796666601 = 1392560^2 + 267949^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011020020201 - 2³⁸ = 1736142113257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011020020281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3431774486 + ... + 3431775071.

It is an arithmetic number, because the mean of its divisors is an integer number (504470892513).

Almost surely, 2^{2011020020201} is an apocalyptic number.

It is an amenable number.

2011020020201 is a deficient number, since it is larger than the sum of its proper divisors (6863549851).

2011020020201 is an equidigital number, since it uses as much as digits as its factorization.

2011020020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6863549850.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2011020020201 its reverse (1020200201102), we get a palindrome (3031220221303).

The spelling of 2011020020201 in words is "two trillion, eleven billion, twenty million, twenty thousand, two hundred one".