2221130112 has 64 divisors (see below), whose sum is σ = 5907664560. Its totient is φ = 739399680.

The previous prime is 2221130111. The next prime is 2221130117. The reversal of 2221130112 is 2110311222.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 2221130091 and 2221130100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221130111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324162 + ... + 330942.

Almost surely, 2^2221130112 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 2221130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2953832280).

2221130112 is an abundant number, since it is smaller than the sum of its proper divisors (3686534448).

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

2221130112 is an equidigital number, since it uses as much as digits as its factorization.

2221130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7651 (or 7639 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2221130112 is about 47128.8670774081. The cubic root of 2221130112 is about 1304.7420720120.

Adding to 2221130112 its reverse (2110311222), we get a palindrome (4331441334).

The spelling of 2221130112 in words is "two billion, two hundred twenty-one million, one hundred thirty thousand, one hundred twelve".