1113220112 has 40 divisors (see below), whose sum is σ = 2307336696. Its totient is φ = 518455296.

The previous prime is 1113220103. The next prime is 1113220117. The reversal of 1113220112 is 2110223111.

It can be written as a sum of positive squares in 4 ways, for example, as 298460176 + 814759936 = 17276^2 + 28544^2 .

It is a super-2 number, since 2×1113220112² = 2478518035522585088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1113220117) 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, 5288 + ... + 47480.

Almost surely, 2^1113220112 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 1113220112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153668348).

1113220112 is an abundant number, since it is smaller than the sum of its proper divisors (1194116584).

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

1113220112 is a wasteful number, since it uses less digits than its factorization.

1113220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42315 (or 42309 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1113220112 is about 33364.9533492855. The cubic root of 1113220112 is about 1036.3990700813.

Adding to 1113220112 its reverse (2110223111), we get a palindrome (3223443223).

Subtracting 1113220112 from its reverse (2110223111), we obtain a cube (997002999 = 999³).

It can be divided in two parts, 111 and 3220112, that added together give a palindrome (3220223).

The spelling of 1113220112 in words is "one billion, one hundred thirteen million, two hundred twenty thousand, one hundred twelve".