2001220200201 has 16 divisors (see below), whose sum is σ = 2678401275264. Its totient is φ = 1329099442944.

The previous prime is 2001220200197. The next prime is 2001220200247. The reversal of 2001220200201 is 1020020221002.

It is not a de Polignac number, because 2001220200201 - 2² = 2001220200197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2001220250201) 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 15 ways as a sum of consecutive naturals, for example, 427195 + ... + 2045711.

It is an arithmetic number, because the mean of its divisors is an integer number (167400079704).

Almost surely, 2^{2001220200201} is an apocalyptic number.

It is an amenable number.

2001220200201 is a deficient number, since it is larger than the sum of its proper divisors (677181075063).

2001220200201 is a wasteful number, since it uses less digits than its factorization.

2001220200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620080.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2001220200201 its reverse (1020020221002), we get a palindrome (3021240421203).

The spelling of 2001220200201 in words is "two trillion, one billion, two hundred twenty million, two hundred thousand, two hundred one".