111200222122200 has 288 divisors, whose sum is σ = 397422111303360. Its totient is φ = 27767403417600.

The previous prime is 111200222122189. The next prime is 111200222122289. The reversal of 111200222122200 is 2221222002111.

It is a happy number.

111200222122200 is a `hidden beast` number, since 1 + 1 + 120 + 0 + 222 + 122 + 200 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3195136 + ... + 15251535.

It is an arithmetic number, because the mean of its divisors is an integer number (1379937886470).

Almost surely, 2^{111200222122200} is an apocalyptic number.

111200222122200 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 111200222122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198711055651680).

111200222122200 is an abundant number, since it is smaller than the sum of its proper divisors (286221889181160).

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

111200222122200 is a wasteful number, since it uses less digits than its factorization.

111200222122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18446907 (or 18446895 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111200222122200 its reverse (2221222002111), we get a palindrome (113421444124311).

The spelling of 111200222122200 in words is "one hundred eleven trillion, two hundred billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred".