11112230556 has 108 divisors (see below), whose sum is σ = 33247770192. Its totient is φ = 3065384448.

The previous prime is 11112230551. The next prime is 11112230573. The reversal of 11112230556 is 65503221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112230551) 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, 185716 + ... + 238148.

It is an arithmetic number, because the mean of its divisors is an integer number (307849724).

Almost surely, 2^11112230556 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 11112230556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16623885096).

11112230556 is an abundant number, since it is smaller than the sum of its proper divisors (22135539636).

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

11112230556 is a wasteful number, since it uses less digits than its factorization.

11112230556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52508 (or 52474 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 11112230556 its reverse (65503221111), we get a palindrome (76615451667).

The spelling of 11112230556 in words is "eleven billion, one hundred twelve million, two hundred thirty thousand, five hundred fifty-six".