2011422111 has 4 divisors (see below), whose sum is σ = 2681896152. Its totient is φ = 1340948072.

The previous prime is 2011422097. The next prime is 2011422143. The reversal of 2011422111 is 1112241102.

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 2011422111 - 2⁵ = 2011422079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011422181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335237016 + ... + 335237021.

It is an arithmetic number, because the mean of its divisors is an integer number (670474038).

Almost surely, 2^2011422111 is an apocalyptic number.

2011422111 is a deficient number, since it is larger than the sum of its proper divisors (670474041).

2011422111 is an equidigital number, since it uses as much as digits as its factorization.

2011422111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670474040.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 2011422111 is about 44848.8808221565. The cubic root of 2011422111 is about 1262.3149913652.

Adding to 2011422111 its reverse (1112241102), we get a palindrome (3123663213).

The spelling of 2011422111 in words is "two billion, eleven million, four hundred twenty-two thousand, one hundred eleven".