1100229228 has 72 divisors (see below), whose sum is σ = 3196327680. Its totient is φ = 312582240.

The previous prime is 1100229217. The next prime is 1100229241. The reversal of 1100229228 is 8229220011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32913 + ... + 57303.

It is an arithmetic number, because the mean of its divisors is an integer number (44393440).

Almost surely, 2^1100229228 is an apocalyptic number.

1100229228 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 1100229228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598163840).

1100229228 is an abundant number, since it is smaller than the sum of its proper divisors (2096098452).

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

1100229228 is a wasteful number, since it uses less digits than its factorization.

1100229228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24587 (or 24582 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1100229228 is about 33169.7034656628. The cubic root of 1100229228 is about 1032.3518157810.

Adding to 1100229228 its reverse (8229220011), we get a palindrome (9329449239).

The spelling of 1100229228 in words is "one billion, one hundred million, two hundred twenty-nine thousand, two hundred twenty-eight".