1121032312200 has 288 divisors, whose sum is σ = 3913155792000. Its totient is φ = 287356654080.

The previous prime is 1121032312187. The next prime is 1121032312223. The reversal of 1121032312200 is 22132301211.

1121032312200 is a `hidden beast` number, since 1 + 1 + 210 + 3 + 231 + 220 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5426401 + ... + 5629199.

It is an arithmetic number, because the mean of its divisors is an integer number (13587346500).

Almost surely, 2^{1121032312200} is an apocalyptic number.

1121032312200 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 1121032312200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1956577896000).

1121032312200 is an abundant number, since it is smaller than the sum of its proper divisors (2792123479800).

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

1121032312200 is a wasteful number, since it uses less digits than its factorization.

1121032312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202941 (or 202929 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1121032312200 its reverse (22132301211), we get a palindrome (1143164613411).

The spelling of 1121032312200 in words is "one trillion, one hundred twenty-one billion, thirty-two million, three hundred twelve thousand, two hundred".