105216112 has 20 divisors (see below), whose sum is σ = 206314920. Its totient is φ = 51973568.

The previous prime is 105216109. The next prime is 105216121. The reversal of 105216112 is 211612501.

It is a super-2 number, since 2×105216112² = 22140860448793088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105216112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38287 + ... + 40942.

It is an arithmetic number, because the mean of its divisors is an integer number (10315746).

Almost surely, 2^105216112 is an apocalyptic number.

It is an amenable number.

105216112 is a deficient number, since it is larger than the sum of its proper divisors (101098808).

105216112 is an equidigital number, since it uses as much as digits as its factorization.

105216112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79320 (or 79314 counting only the distinct ones).

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

The square root of 105216112 is about 10257.4905313142. The cubic root of 105216112 is about 472.0928429832.

Adding to 105216112 its reverse (211612501), we get a palindrome (316828613).

The spelling of 105216112 in words is "one hundred five million, two hundred sixteen thousand, one hundred twelve".