2001201020101 has 8 divisors (see below), whose sum is σ = 2155516399520. Its totient is φ = 1851784541712.

The previous prime is 2001201020053. The next prime is 2001201020201. The reversal of 2001201020101 is 1010201021002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001201020101 - 2³⁵ = 1966841281733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001201020201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224724410 + ... + 1224726043.

It is an arithmetic number, because the mean of its divisors is an integer number (269439549940).

Almost surely, 2^{2001201020101} is an apocalyptic number.

It is an amenable number.

2001201020101 is a deficient number, since it is larger than the sum of its proper divisors (154315379419).

2001201020101 is a wasteful number, since it uses less digits than its factorization.

2001201020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449450515.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2001201020101 its reverse (1010201021002), we get a palindrome (3011402041103).

Subtracting from 2001201020101 its reverse (1010201021002), we obtain a palindrome (990999999099).

It can be divided in two parts, 200120 and 1020101, that added together give a palindrome (1220221).

The spelling of 2001201020101 in words is "two trillion, one billion, two hundred one million, twenty thousand, one hundred one".