11122111200 has 288 divisors, whose sum is σ = 37403856000. Its totient is φ = 2868480000.

The previous prime is 11122111183. The next prime is 11122111241. The reversal of 11122111200 is 211122111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22288551 + ... + 22289049.

It is an arithmetic number, because the mean of its divisors is an integer number (129874500).

Almost surely, 2^11122111200 is an apocalyptic number.

11122111200 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 11122111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18701928000).

11122111200 is an abundant number, since it is smaller than the sum of its proper divisors (26281744800).

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

11122111200 is a wasteful number, since it uses less digits than its factorization.

11122111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11122111200 its reverse (211122111), we get a palindrome (11333233311).

The spelling of 11122111200 in words is "eleven billion, one hundred twenty-two million, one hundred eleven thousand, two hundred".