11213112211200 has 648 divisors, whose sum is σ = 40399586677632. Its totient is φ = 2967121428480.

The previous prime is 11213112211159. The next prime is 11213112211207. The reversal of 11213112211200 is 211221131211.

It is a happy number.

11213112211200 is a `hidden beast` number, since 1 + 12 + 1 + 311 + 221 + 120 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213112211207) 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, 4534213164 + ... + 4534215636.

Almost surely, 2^{11213112211200} is an apocalyptic number.

11213112211200 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 11213112211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20199793338816).

11213112211200 is an abundant number, since it is smaller than the sum of its proper divisors (29186474466432).

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

11213112211200 is a wasteful number, since it uses less digits than its factorization.

11213112211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081 (or 3059 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11213112211200 its reverse (211221131211), we get a palindrome (11424333342411).

The spelling of 11213112211200 in words is "eleven trillion, two hundred thirteen billion, one hundred twelve million, two hundred eleven thousand, two hundred".