2001133111211 has 8 divisors (see below), whose sum is σ = 2179280658240. Its totient is φ = 1826444740032.

The previous prime is 2001133111177. The next prime is 2001133111249. The reversal of 2001133111211 is 1121113311002.

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-2001133111211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001133111211.

It is not an unprimeable number, because it can be changed into a prime (2001133111111) 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, 864792755 + ... + 864795068.

It is an arithmetic number, because the mean of its divisors is an integer number (272410082280).

Almost surely, 2^{2001133111211} is an apocalyptic number.

2001133111211 is a deficient number, since it is larger than the sum of its proper divisors (178147547029).

2001133111211 is a wasteful number, since it uses less digits than its factorization.

2001133111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729587925.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 2001133111211 its reverse (1121113311002), we get a palindrome (3122246422213).

The spelling of 2001133111211 in words is "two trillion, one billion, one hundred thirty-three million, one hundred eleven thousand, two hundred eleven".