1121012200000 has 504 divisors, whose sum is σ = 3528786643200. Its totient is φ = 349372800000.

The previous prime is 1121012199973. The next prime is 1121012200003. The reversal of 1121012200000 is 22101211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1121012200000.

It is not an unprimeable number, because it can be changed into a prime (1121012200003) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 107794801 + ... + 107805199.

It is an arithmetic number, because the mean of its divisors is an integer number (7001560800).

Almost surely, 2^{1121012200000} is an apocalyptic number.

1121012200000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121012200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1764393321600).

1121012200000 is an abundant number, since it is smaller than the sum of its proper divisors (2407774443200).

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

1121012200000 is an equidigital number, since it uses as much as digits as its factorization.

1121012200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461 (or 10424 counting only the distinct ones).

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

Adding to 1121012200000 its reverse (22101211), we get a palindrome (1121034301211).

The spelling of 1121012200000 in words is "one trillion, one hundred twenty-one billion, twelve million, two hundred thousand".