2011220112111 has 16 divisors (see below), whose sum is σ = 3170396236800. Its totient is φ = 1109638682208.

The previous prime is 2011220112101. The next prime is 2011220112119. The reversal of 2011220112111 is 1112110221102.

It is a happy number.

It is not a de Polignac number, because 2011220112111 - 2⁷ = 2011220111983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011220112119) 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 15 ways as a sum of consecutive naturals, for example, 1651247431 + ... + 1651248648.

It is an arithmetic number, because the mean of its divisors is an integer number (198149764800).

Almost surely, 2^{2011220112111} is an apocalyptic number.

2011220112111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2011220112111 is a deficient number, since it is larger than the sum of its proper divisors (1159176124689).

2011220112111 is a wasteful number, since it uses less digits than its factorization.

2011220112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302496118.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2011220112111 its reverse (1112110221102), we get a palindrome (3123330333213).

The spelling of 2011220112111 in words is "two trillion, eleven billion, two hundred twenty million, one hundred twelve thousand, one hundred eleven".