11100121212200 has 384 divisors, whose sum is σ = 28864688256000. Its totient is φ = 3950733312000.

The previous prime is 11100121212199. The next prime is 11100121212223. The reversal of 11100121212200 is 221212100111.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 957974807 + ... + 957986393.

It is an arithmetic number, because the mean of its divisors is an integer number (75168459000).

Almost surely, 2^{11100121212200} is an apocalyptic number.

11100121212200 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 11100121212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14432344128000).

11100121212200 is an abundant number, since it is smaller than the sum of its proper divisors (17764567043800).

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

11100121212200 is a wasteful number, since it uses less digits than its factorization.

11100121212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11861 (or 11852 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11100121212200 its reverse (221212100111), we get a palindrome (11321333312311).

The spelling of 11100121212200 in words is "eleven trillion, one hundred billion, one hundred twenty-one million, two hundred twelve thousand, two hundred".