2001112220111 has 4 divisors (see below), whose sum is σ = 2070116089800. Its totient is φ = 1932108350424.

The previous prime is 2001112220087. The next prime is 2001112220161. The reversal of 2001112220111 is 1110222111002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001112220111 - 2¹⁰ = 2001112219087 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 (2001112220161) 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, 34501934801 + ... + 34501934858.

It is an arithmetic number, because the mean of its divisors is an integer number (517529022450).

Almost surely, 2^{2001112220111} is an apocalyptic number.

2001112220111 is a deficient number, since it is larger than the sum of its proper divisors (69003869689).

2001112220111 is an equidigital number, since it uses as much as digits as its factorization.

2001112220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69003869688.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2001112220111 its reverse (1110222111002), we get a palindrome (3111334331113).

The spelling of 2001112220111 in words is "two trillion, one billion, one hundred twelve million, two hundred twenty thousand, one hundred eleven".