2219112 has 144 divisors (see below), whose sum is σ = 7602660. Its totient is φ = 580608.

The previous prime is 2219111. The next prime is 2219117. The reversal of 2219112 is 2119122.

It can be written as a sum of positive squares in 2 ways, for example, as 1920996 + 298116 = 1386^2 + 546^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2219111) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 59958 + ... + 59994.

2^2219112 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 2219112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3801330).

2219112 is an abundant number, since it is smaller than the sum of its proper divisors (5383548).

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

2219112 is a wasteful number, since it uses less digits than its factorization.

2219112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 66 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 2219112 is about 1489.6684194813. The cubic root of 2219112 is about 130.4346790724.

The spelling of 2219112 in words is "two million, two hundred nineteen thousand, one hundred twelve".