2002111111 has 32 divisors (see below), whose sum is σ = 2829657600. Its totient is φ = 1364273280.

The previous prime is 2002111081. The next prime is 2002111117. The reversal of 2002111111 is 1111112002.

It is a cyclic number.

It is not a de Polignac number, because 2002111111 - 2⁵ = 2002111079 is a prime.

2002111111 is a modest number, since divided by 111111 gives 2002 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002111117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33616 + ... + 71653.

It is an arithmetic number, because the mean of its divisors is an integer number (88426800).

Almost surely, 2^2002111111 is an apocalyptic number.

2002111111 is a deficient number, since it is larger than the sum of its proper divisors (827546489).

2002111111 is a wasteful number, since it uses less digits than its factorization.

2002111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105319.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 2002111111 is about 44744.9562632483. The cubic root of 2002111111 is about 1260.3641995397.

Adding to 2002111111 its reverse (1111112002), we get a palindrome (3113223113).

It can be divided in two parts, 2002 and 111111, that multiplied together give a palindrome (222444222).

The spelling of 2002111111 in words is "two billion, two million, one hundred eleven thousand, one hundred eleven".