2111200011 has 16 divisors (see below), whose sum is σ = 3137904000. Its totient is φ = 1402876584.

The previous prime is 2111200001. The next prime is 2111200019. The reversal of 2111200011 is 1100021112.

It is a happy number.

It is not a de Polignac number, because 2111200011 - 2²² = 2107005707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2111199966 and 2111200002.

It is not an unprimeable number, because it can be changed into a prime (2111200019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119061 + ... + 135638.

It is an arithmetic number, because the mean of its divisors is an integer number (196119000).

Almost surely, 2^2111200011 is an apocalyptic number.

2111200011 is a deficient number, since it is larger than the sum of its proper divisors (1026703989).

2111200011 is a wasteful number, since it uses less digits than its factorization.

2111200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255015 (or 255009 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 2111200011 is about 45947.7965848200. The cubic root of 2111200011 is about 1282.8517170846.

Adding to 2111200011 its reverse (1100021112), we get a palindrome (3211221123).

The spelling of 2111200011 in words is "two billion, one hundred eleven million, two hundred thousand, eleven".