2011111199 has 4 divisors (see below), whose sum is σ = 2015109936. Its totient is φ = 2007112464.

The previous prime is 2011111181. The next prime is 2011111231. The reversal of 2011111199 is 9911111102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011111199 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 (2011111159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1998614 + ... + 1999619.

It is an arithmetic number, because the mean of its divisors is an integer number (503777484).

Almost surely, 2^2011111199 is an apocalyptic number.

2011111199 is a deficient number, since it is larger than the sum of its proper divisors (3998737).

2011111199 is an equidigital number, since it uses as much as digits as its factorization.

2011111199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998736.

The product of its (nonzero) digits is 162, while the sum is 26.

The square root of 2011111199 is about 44845.4144701551. The cubic root of 2011111199 is about 1262.2499479812.

The spelling of 2011111199 in words is "two billion, eleven million, one hundred eleven thousand, one hundred ninety-nine".