2001202011111 has 16 divisors (see below), whose sum is σ = 2708474489600. Its totient is φ = 1314037695168.

The previous prime is 2001202011059. The next prime is 2001202011113. The reversal of 2001202011111 is 1111102021002.

It is a de Polignac number, because none of the positive numbers 2^k-2001202011111 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 (2001202011113) 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, 743595 + ... + 2134323.

It is an arithmetic number, because the mean of its divisors is an integer number (169279655600).

Almost surely, 2^{2001202011111} is an apocalyptic number.

2001202011111 is a deficient number, since it is larger than the sum of its proper divisors (707272478489).

2001202011111 is a wasteful number, since it uses less digits than its factorization.

2001202011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397958.

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

Adding to 2001202011111 its reverse (1111102021002), we get a palindrome (3112304032113).

The spelling of 2001202011111 in words is "two trillion, one billion, two hundred two million, eleven thousand, one hundred eleven".