222111122200 has 96 divisors (see below), whose sum is σ = 563617408320. Its totient is φ = 80730000000.

The previous prime is 222111122161. The next prime is 222111122221. The reversal of 222111122200 is 2221111222.

It is a happy number.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4929775 + ... + 4974625.

It is an arithmetic number, because the mean of its divisors is an integer number (5871014670).

Almost surely, 2^222111122200 is an apocalyptic number.

222111122200 is a gapful number since it is divisible by the number (20) 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 222111122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281808704160).

222111122200 is an abundant number, since it is smaller than the sum of its proper divisors (341506286120).

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

222111122200 is a wasteful number, since it uses less digits than its factorization.

222111122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47129 (or 47120 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222111122200 its reverse (2221111222), we get a palindrome (224332233422).

222111122200 divided by its reverse (2221111222) gives a square (100 = 10²).

It can be divided in two parts, 22211 and 1122200, that added together give a palindrome (1144411).

The spelling of 222111122200 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred".