1121103112200 has 96 divisors (see below), whose sum is σ = 3556243442400. Its totient is φ = 292008245760.

The previous prime is 1121103112193. The next prime is 1121103112201. The reversal of 1121103112200 is 22113011211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1121103112200.

It is not an unprimeable number, because it can be changed into a prime (1121103112201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21701005 + ... + 21752604.

It is an arithmetic number, because the mean of its divisors is an integer number (37044202525).

Almost surely, 2^{1121103112200} is an apocalyptic number.

1121103112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121103112200 is an abundant number, since it is smaller than the sum of its proper divisors (2435140330200).

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

1121103112200 is a wasteful number, since it uses less digits than its factorization.

1121103112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43453671 (or 43453662 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1121103112200 its reverse (22113011211), we get a palindrome (1143216123411).

The spelling of 1121103112200 in words is "one trillion, one hundred twenty-one billion, one hundred three million, one hundred twelve thousand, two hundred".