2112105215 has 12 divisors (see below), whose sum is σ = 2785885032. Its totient is φ = 1536076080.

The previous prime is 2112105209. The next prime is 2112105241. The reversal of 2112105215 is 5125012112.

It is not a de Polignac number, because 2112105215 - 2¹² = 2112101119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1744937 + ... + 1746146.

It is an arithmetic number, because the mean of its divisors is an integer number (232157086).

Almost surely, 2^2112105215 is an apocalyptic number.

2112105215 is a deficient number, since it is larger than the sum of its proper divisors (673779817).

2112105215 is a wasteful number, since it uses less digits than its factorization.

2112105215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491110 (or 3491099 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 2112105215 is about 45957.6458818334. The cubic root of 2112105215 is about 1283.0350372458.

Adding to 2112105215 its reverse (5125012112), we get a palindrome (7237117327).

The spelling of 2112105215 in words is "two billion, one hundred twelve million, one hundred five thousand, two hundred fifteen".