11124042228 has 96 divisors (see below), whose sum is σ = 31567979520. Its totient is φ = 3366645120.

The previous prime is 11124042179. The next prime is 11124042239. The reversal of 11124042228 is 82224042111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20701 + ... + 150587.

It is an arithmetic number, because the mean of its divisors is an integer number (328833120).

Almost surely, 2^11124042228 is an apocalyptic number.

11124042228 is a gapful number since it is divisible by the number (18) 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 11124042228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15783989760).

11124042228 is an abundant number, since it is smaller than the sum of its proper divisors (20443937292).

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

11124042228 is a wasteful number, since it uses less digits than its factorization.

11124042228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129974 (or 129966 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 11124042228 its reverse (82224042111), we get a palindrome (93348084339).

The spelling of 11124042228 in words is "eleven billion, one hundred twenty-four million, forty-two thousand, two hundred twenty-eight".