216112105 has 8 divisors (see below), whose sum is σ = 282910464. Its totient is φ = 157172400.

The previous prime is 216112093. The next prime is 216112121. The reversal of 216112105 is 501211612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216112105 - 2⁷ = 216111977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964601 + ... + 1964710.

It is an arithmetic number, because the mean of its divisors is an integer number (35363808).

Almost surely, 2^216112105 is an apocalyptic number.

It is an amenable number.

216112105 is a deficient number, since it is larger than the sum of its proper divisors (66798359).

216112105 is a wasteful number, since it uses less digits than its factorization.

216112105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929327.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 216112105 is about 14700.7518515211. The cubic root of 216112105 is about 600.1037829734.

Adding to 216112105 its reverse (501211612), we get a palindrome (717323717).

It can be divided in two parts, 21611 and 2105, that added together give a square (23716 = 154²).

The spelling of 216112105 in words is "two hundred sixteen million, one hundred twelve thousand, one hundred five".