2001201100111 has 8 divisors (see below), whose sum is σ = 2006708882624. Its totient is φ = 1995693616800.

The previous prime is 2001201100097. The next prime is 2001201100121. The reversal of 2001201100111 is 1110011021002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001201100111 - 2¹⁵ = 2001201067343 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 (2001201100121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23409001 + ... + 23494333.

It is an arithmetic number, because the mean of its divisors is an integer number (250838610328).

Almost surely, 2^{2001201100111} is an apocalyptic number.

2001201100111 is a deficient number, since it is larger than the sum of its proper divisors (5507782513).

2001201100111 is an equidigital number, since it uses as much as digits as its factorization.

2001201100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149601.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2001201100111 its reverse (1110011021002), we get a palindrome (3111212121113).

The spelling of 2001201100111 in words is "two trillion, one billion, two hundred one million, one hundred thousand, one hundred eleven".