2112201111 has 16 divisors (see below), whose sum is σ = 2825798400. Its totient is φ = 1403379648.

The previous prime is 2112201097. The next prime is 2112201127. The reversal of 2112201111 is 1111022112.

It is not a de Polignac number, because 2112201111 - 2¹³ = 2112192919 is a prime.

It is a super-2 number, since 2×2112201111² = 8922787066619268642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112201011) 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, 2229940 + ... + 2230886.

It is an arithmetic number, because the mean of its divisors is an integer number (176612400).

Almost surely, 2^2112201111 is an apocalyptic number.

2112201111 is a deficient number, since it is larger than the sum of its proper divisors (713597289).

2112201111 is an equidigital number, since it uses as much as digits as its factorization.

2112201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678.

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

The square root of 2112201111 is about 45958.6891784350. The cubic root of 2112201111 is about 1283.0544548495.

Adding to 2112201111 its reverse (1111022112), we get a palindrome (3223223223).

The spelling of 2112201111 in words is "two billion, one hundred twelve million, two hundred one thousand, one hundred eleven".