1121032231200 has 648 divisors, whose sum is σ = 4696342664832. Its totient is φ = 250780400640.

The previous prime is 1121032231093. The next prime is 1121032231223. The reversal of 1121032231200 is 21322301211.

1121032231200 is a `hidden beast` number, since 11 + 21 + 0 + 322 + 312 + 0 + 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 107 ways as a sum of consecutive naturals, for example, 16547797 + ... + 16615403.

It is an arithmetic number, because the mean of its divisors is an integer number (7247442384).

Almost surely, 2^{1121032231200} is an apocalyptic number.

1121032231200 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 1121032231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2348171332416).

1121032231200 is an abundant number, since it is smaller than the sum of its proper divisors (3575310433632).

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

1121032231200 is a wasteful number, since it uses less digits than its factorization.

1121032231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67694 (or 67671 counting only the distinct ones).

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

Adding to 1121032231200 its reverse (21322301211), we get a palindrome (1142354532411).

The spelling of 1121032231200 in words is "one trillion, one hundred twenty-one billion, thirty-two million, two hundred thirty-one thousand, two hundred".