2002111 has 4 divisors (see below), whose sum is σ = 2012472. Its totient is φ = 1991752.

The previous prime is 2002093. The next prime is 2002151. The reversal of 2002111 is 1112002.

2002111 is nontrivially palindromic in base 6.

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 2002111 - 2⁵ = 2002079 is a prime.

It is a Duffinian number.

2002111 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2002094 and 2002103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002151) 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, 4885 + ... + 5278.

It is an arithmetic number, because the mean of its divisors is an integer number (503118).

2^2002111 is an apocalyptic number.

2002111 is a deficient number, since it is larger than the sum of its proper divisors (10361).

2002111 is a wasteful number, since it uses less digits than its factorization.

2002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10360.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2002111 is about 1414.9597167411. The cubic root of 2002111 is about 126.0364176248.

Adding to 2002111 its reverse (1112002), we get a palindrome (3114113).

It can be divided in two parts, 2002 and 111, that multiplied together give a palindrome (222222).

The spelling of 2002111 in words is "two million, two thousand, one hundred eleven".