2001200440201 has 4 divisors (see below), whose sum is σ = 2118918113172. Its totient is φ = 1883482767232.

The previous prime is 2001200440177. The next prime is 2001200440231. The reversal of 2001200440201 is 1020440021002.

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 588252184576 + 1412948255625 = 766976^2 + 1188675^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001200440201 - 2⁷ = 2001200440073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001200440231) 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, 58858836460 + ... + 58858836493.

It is an arithmetic number, because the mean of its divisors is an integer number (529729528293).

Almost surely, 2^{2001200440201} is an apocalyptic number.

It is an amenable number.

2001200440201 is a deficient number, since it is larger than the sum of its proper divisors (117717672971).

2001200440201 is a wasteful number, since it uses less digits than its factorization.

2001200440201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117717672970.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2001200440201 its reverse (1020440021002), we get a palindrome (3021640461203).

The spelling of 2001200440201 in words is "two trillion, one billion, two hundred million, four hundred forty thousand, two hundred one".