2001111200201 has 8 divisors (see below), whose sum is σ = 2005124517000. Its totient is φ = 1997098205440.

The previous prime is 2001111200191. The next prime is 2001111200203. The reversal of 2001111200201 is 1020021111002.

It can be written as a sum of positive squares in 4 ways, for example, as 565919180176 + 1435192020025 = 752276^2 + 1197995^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001111200201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2001111200203) 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, 15286775 + ... + 15417123.

It is an arithmetic number, because the mean of its divisors is an integer number (250640564625).

Almost surely, 2^{2001111200201} is an apocalyptic number.

It is an amenable number.

2001111200201 is a deficient number, since it is larger than the sum of its proper divisors (4013316799).

2001111200201 is a wasteful number, since it uses less digits than its factorization.

2001111200201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161019.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2001111200201 its reverse (1020021111002), we get a palindrome (3021132311203).

The spelling of 2001111200201 in words is "two trillion, one billion, one hundred eleven million, two hundred thousand, two hundred one".