1121220011200 has 84 divisors (see below), whose sum is σ = 2759297536512. Its totient is φ = 448423705600.

The previous prime is 1121220011159. The next prime is 1121220011227. The reversal of 1121220011200 is 21100221211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12019137 + ... + 12112063.

Almost surely, 2^{1121220011200} is an apocalyptic number.

1121220011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121220011200 is an abundant number, since it is smaller than the sum of its proper divisors (1638077525312).

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

1121220011200 is an equidigital number, since it uses as much as digits as its factorization.

1121220011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100490 (or 100475 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1121220011200 its reverse (21100221211), we get a palindrome (1142320232411).

The spelling of 1121220011200 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, eleven thousand, two hundred".