1121140224 has 80 divisors (see below), whose sum is σ = 3318693840. Its totient is φ = 373708800.

The previous prime is 1121140193. The next prime is 1121140253. The reversal of 1121140224 is 4220411211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1121140197 and 1121140206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26727 + ... + 54374.

It is an arithmetic number, because the mean of its divisors is an integer number (41483673).

Almost surely, 2^1121140224 is an apocalyptic number.

It is an amenable number.

1121140224 is an abundant number, since it is smaller than the sum of its proper divisors (2197553616).

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

1121140224 is an frugal number, since it uses more digits than its factorization.

1121140224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81128 (or 81106 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1121140224 is about 33483.4320821507. The cubic root of 1121140224 is about 1038.8511178916.

Adding to 1121140224 its reverse (4220411211), we get a palindrome (5341551435).

The spelling of 1121140224 in words is "one billion, one hundred twenty-one million, one hundred forty thousand, two hundred twenty-four".