3112216112 has 80 divisors (see below), whose sum is σ = 7013122560. Its totient is φ = 1327113216.

The previous prime is 3112216109. The next prime is 3112216189. The reversal of 3112216112 is 2116122113.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105773 + ... + 131955.

It is an arithmetic number, because the mean of its divisors is an integer number (87664032).

Almost surely, 2^3112216112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3112216112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3506561280).

3112216112 is an abundant number, since it is smaller than the sum of its proper divisors (3900906448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3112216112 is a wasteful number, since it uses less digits than its factorization.

3112216112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26250 (or 26244 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 3112216112 is about 55787.2396879430. The cubic root of 3112216112 is about 1460.0125275712.

Adding to 3112216112 its reverse (2116122113), we get a palindrome (5228338225).

The spelling of 3112216112 in words is "three billion, one hundred twelve million, two hundred sixteen thousand, one hundred twelve".