1112444220 has 96 divisors (see below), whose sum is σ = 3338270208. Its totient is φ = 276072192.

The previous prime is 1112444159. The next prime is 1112444227. The reversal of 1112444220 is 224442111.

It is a super-2 number, since 2×1112444220² = 2475064285222816800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112444227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40167 + ... + 61953.

It is an arithmetic number, because the mean of its divisors is an integer number (34773648).

Almost surely, 2^1112444220 is an apocalyptic number.

1112444220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112444220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669135104).

1112444220 is an abundant number, since it is smaller than the sum of its proper divisors (2225825988).

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

1112444220 is a wasteful number, since it uses less digits than its factorization.

1112444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21859 (or 21857 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1112444220 is about 33353.3239722820. The cubic root of 1112444220 is about 1036.1582310257.

Adding to 1112444220 its reverse (224442111), we get a palindrome (1336886331).

The spelling of 1112444220 in words is "one billion, one hundred twelve million, four hundred forty-four thousand, two hundred twenty".