2002112111 has 4 divisors (see below), whose sum is σ = 2002222152. Its totient is φ = 2002002072.

The previous prime is 2002112081. The next prime is 2002112129. The reversal of 2002112111 is 1112112002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1112112002 = 2 ⋅556056001.

It is a cyclic number.

It is not a de Polignac number, because 2002112111 - 2²² = 1997917807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002112092 and 2002112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002112141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20516 + ... + 66521.

It is an arithmetic number, because the mean of its divisors is an integer number (500555538).

Almost surely, 2^2002112111 is an apocalyptic number.

2002112111 is a deficient number, since it is larger than the sum of its proper divisors (110041).

2002112111 is an equidigital number, since it uses as much as digits as its factorization.

2002112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110040.

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

The square root of 2002112111 is about 44744.9674376907. The cubic root of 2002112111 is about 1260.3644093788.

Adding to 2002112111 its reverse (1112112002), we get a palindrome (3114224113).

The spelling of 2002112111 in words is "two billion, two million, one hundred twelve thousand, one hundred eleven".