2112105 has 16 divisors (see below), whose sum is σ = 3407040. Its totient is φ = 1117248.

The previous prime is 2112079. The next prime is 2112107. The reversal of 2112105 is 5012112.

It is not a de Polignac number, because 2112105 - 2¹² = 2108009 is a prime.

2112105 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2112107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (212940).

2^2112105 is an apocalyptic number.

It is an amenable number.

2112105 is a deficient number, since it is larger than the sum of its proper divisors (1294935).

2112105 is a wasteful number, since it uses less digits than its factorization.

2112105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 2112105 is about 1453.3082948913. The cubic root of 2112105 is about 128.3034993711.

Adding to 2112105 its reverse (5012112), we get a palindrome (7124217).

The spelling of 2112105 in words is "two million, one hundred twelve thousand, one hundred five".