11112211112200 has 192 divisors, whose sum is σ = 28472174360640. Its totient is φ = 3999600000000.

The previous prime is 11112211112069. The next prime is 11112211112221. The reversal of 11112211112200 is 221111221111.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1122327250 + ... + 1122337150.

It is an arithmetic number, because the mean of its divisors is an integer number (148292574795).

Almost surely, 2^{11112211112200} is an apocalyptic number.

11112211112200 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 11112211112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14236087180320).

11112211112200 is an abundant number, since it is smaller than the sum of its proper divisors (17359963248440).

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

11112211112200 is a wasteful number, since it uses less digits than its factorization.

11112211112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15080 (or 15071 counting only the distinct ones).

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

Adding to 11112211112200 its reverse (221111221111), we get a palindrome (11333322333311).

It can be divided in two parts, 111122 and 11112200, that multiplied together give a square (1234809888400 = 1111220²).

The spelling of 11112211112200 in words is "eleven trillion, one hundred twelve billion, two hundred eleven million, one hundred twelve thousand, two hundred".