2001202001111 has 8 divisors (see below), whose sum is σ = 2088356133984. Its totient is φ = 1914059980800.

The previous prime is 2001202001009. The next prime is 2001202001143. The reversal of 2001202001111 is 1111002021002.

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-2001202001111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001202001092 and 2001202001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001202001171) 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, 2689706 + ... + 3352151.

It is an arithmetic number, because the mean of its divisors is an integer number (261044516748).

Almost surely, 2^{2001202001111} is an apocalyptic number.

2001202001111 is a deficient number, since it is larger than the sum of its proper divisors (87154132873).

2001202001111 is a wasteful number, since it uses less digits than its factorization.

2001202001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056281.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2001202001111 its reverse (1111002021002), we get a palindrome (3112204022113).

The spelling of 2001202001111 in words is "two trillion, one billion, two hundred two million, one thousand, one hundred eleven".