2001201011111 has 2 divisors, whose sum is σ = 2001201011112. Its totient is φ = 2001201011110.

The previous prime is 2001201011107. The next prime is 2001201011177. The reversal of 2001201011111 is 1111101021002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001201011111 - 2² = 2001201011107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001201011092 and 2001201011101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001201010111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000600505555 + 1000600505556.

It is an arithmetic number, because the mean of its divisors is an integer number (1000600505556).

Almost surely, 2^{2001201011111} is an apocalyptic number.

2001201011111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001201011111 is an equidigital number, since it uses as much as digits as its factorization.

2001201011111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2001201011111 its reverse (1111101021002), we get a palindrome (3112302032113).

The spelling of 2001201011111 in words is "two trillion, one billion, two hundred one million, eleven thousand, one hundred eleven".