2002211111 has 4 divisors (see below), whose sum is σ = 2089263792. Its totient is φ = 1915158432.

The previous prime is 2002211083. The next prime is 2002211119. The reversal of 2002211111 is 1111122002.

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 2002211111 - 2²² = 1998016807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002211092 and 2002211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002211119) 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, 43526306 + ... + 43526351.

It is an arithmetic number, because the mean of its divisors is an integer number (522315948).

Almost surely, 2^2002211111 is an apocalyptic number.

2002211111 is a deficient number, since it is larger than the sum of its proper divisors (87052681).

2002211111 is an equidigital number, since it uses as much as digits as its factorization.

2002211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87052680.

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

The square root of 2002211111 is about 44746.0736936773. The cubic root of 2002211111 is about 1260.3851831106.

Adding to 2002211111 its reverse (1111122002), we get a palindrome (3113333113).

The spelling of 2002211111 in words is "two billion, two million, two hundred eleven thousand, one hundred eleven".