1121132113200 has 360 divisors, whose sum is σ = 4401536158656. Its totient is φ = 271789344000.

The previous prime is 1121132113187. The next prime is 1121132113207. The reversal of 1121132113200 is 23112311211.

1121132113200 is a `hidden beast` number, since 1 + 1 + 21 + 1 + 321 + 1 + 320 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×1121132113200² (a number of 25 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1121132113207) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 544915 + ... + 1593485.

Almost surely, 2^{1121132113200} is an apocalyptic number.

1121132113200 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 1121132113200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2200768079328).

1121132113200 is an abundant number, since it is smaller than the sum of its proper divisors (3280404045456).

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

1121132113200 is a wasteful number, since it uses less digits than its factorization.

1121132113200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048615 (or 1048592 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1121132113200 its reverse (23112311211), we get a palindrome (1144244424411).

The spelling of 1121132113200 in words is "one trillion, one hundred twenty-one billion, one hundred thirty-two million, one hundred thirteen thousand, two hundred".