2001201211101 has 8 divisors (see below), whose sum is σ = 2718612966240. Its totient is φ = 1308961798352.

The previous prime is 2001201211057. The next prime is 2001201211123. The reversal of 2001201211101 is 1011121021002.

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 2001201211101 - 2⁷ = 2001201210973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001201216101) 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, 6293085411 + ... + 6293085728.

It is an arithmetic number, because the mean of its divisors is an integer number (339826620780).

Almost surely, 2^{2001201211101} is an apocalyptic number.

It is an amenable number.

2001201211101 is a deficient number, since it is larger than the sum of its proper divisors (717411755139).

2001201211101 is a wasteful number, since it uses less digits than its factorization.

2001201211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12586171195.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2001201211101 its reverse (1011121021002), we get a palindrome (3012322232103).

The spelling of 2001201211101 in words is "two trillion, one billion, two hundred one million, two hundred eleven thousand, one hundred one".