2001210611 has 16 divisors (see below), whose sum is σ = 2163744768. Its totient is φ = 1845439200.

The previous prime is 2001210577. The next prime is 2001210613. The reversal of 2001210611 is 1160121002.

It is a cyclic number.

It is not a de Polignac number, because 2001210611 - 2¹⁴ = 2001194227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001210613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188045 + ... + 198401.

It is an arithmetic number, because the mean of its divisors is an integer number (135234048).

Almost surely, 2^2001210611 is an apocalyptic number.

2001210611 is a deficient number, since it is larger than the sum of its proper divisors (162534157).

2001210611 is a wasteful number, since it uses less digits than its factorization.

2001210611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10682.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2001210611 is about 44734.8925448581. The cubic root of 2001210611 is about 1260.1752110004.

Adding to 2001210611 its reverse (1160121002), we get a palindrome (3161331613).

The spelling of 2001210611 in words is "two billion, one million, two hundred ten thousand, six hundred eleven".