2001211033 has 8 divisors (see below), whose sum is σ = 2071254600. Its totient is φ = 1931236608.

The previous prime is 2001211027. The next prime is 2001211067. The reversal of 2001211033 is 3301121002.

It can be written as a sum of positive squares in 4 ways, for example, as 490489609 + 1510721424 = 22147^2 + 38868^2 .

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-2001211033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001211633) 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, 45535 + ... + 77947.

It is an arithmetic number, because the mean of its divisors is an integer number (258906825).

Almost surely, 2^2001211033 is an apocalyptic number.

It is an amenable number.

2001211033 is a deficient number, since it is larger than the sum of its proper divisors (70043567).

2001211033 is a wasteful number, since it uses less digits than its factorization.

2001211033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34571.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2001211033 is about 44734.8972615340. The cubic root of 2001211033 is about 1260.1752995791.

Adding to 2001211033 its reverse (3301121002), we get a palindrome (5302332035).

The spelling of 2001211033 in words is "two billion, one million, two hundred eleven thousand, thirty-three".