2112011211 has 4 divisors (see below), whose sum is σ = 2816014952. Its totient is φ = 1408007472.

The previous prime is 2112011203. The next prime is 2112011219. The reversal of 2112011211 is 1121102112.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2112011203) and next prime (2112011219).

It is not a de Polignac number, because 2112011211 - 2³ = 2112011203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112011219) 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, 352001866 + ... + 352001871.

It is an arithmetic number, because the mean of its divisors is an integer number (704003738).

Almost surely, 2^2112011211 is an apocalyptic number.

2112011211 is a deficient number, since it is larger than the sum of its proper divisors (704003741).

2112011211 is an equidigital number, since it uses as much as digits as its factorization.

2112011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704003740.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 2112011211 is about 45956.6231461799. The cubic root of 2112011211 is about 1283.0160021753.

Adding to 2112011211 its reverse (1121102112), we get a palindrome (3233113323).

Subtracting from 2112011211 its reverse (1121102112), we obtain a palindrome (990909099).

The spelling of 2112011211 in words is "two billion, one hundred twelve million, eleven thousand, two hundred eleven".