1121020100200 has 192 divisors, whose sum is σ = 3499464769920. Its totient is φ = 322531200000.

The previous prime is 1121020100191. The next prime is 1121020100219. The reversal of 1121020100200 is 20010201211.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2599551 + ... + 2999950.

It is an arithmetic number, because the mean of its divisors is an integer number (18226379010).

Almost surely, 2^{1121020100200} is an apocalyptic number.

1121020100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121020100200 is an abundant number, since it is smaller than the sum of its proper divisors (2378444669720).

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

1121020100200 is a wasteful number, since it uses less digits than its factorization.

1121020100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5599548 (or 5599539 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1121020100200 its reverse (20010201211), we get a palindrome (1141030301411).

The spelling of 1121020100200 in words is "one trillion, one hundred twenty-one billion, twenty million, one hundred thousand, two hundred".