1121240200 has 48 divisors (see below), whose sum is σ = 2609632080. Its totient is φ = 448023360.

The previous prime is 1121240191. The next prime is 1121240213. The reversal of 1121240200 is 20421211.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235039 + ... + 239761.

It is an arithmetic number, because the mean of its divisors is an integer number (54367335).

Almost surely, 2^1121240200 is an apocalyptic number.

1121240200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121240200 is an abundant number, since it is smaller than the sum of its proper divisors (1488391880).

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

1121240200 is a wasteful number, since it uses less digits than its factorization.

1121240200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926 (or 5917 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1121240200 is about 33484.9249663188. The cubic root of 1121240200 is about 1038.8819963045.

Adding to 1121240200 its reverse (20421211), we get a palindrome (1141661411).

The spelling of 1121240200 in words is "one billion, one hundred twenty-one million, two hundred forty thousand, two hundred".