2222111222200 has 144 divisors (see below), whose sum is σ = 5442018407280. Its totient is φ = 842233328640.

The previous prime is 2222111222143. The next prime is 2222111222213. The reversal of 2222111222200 is 22221112222.

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 35 ways as a sum of consecutive naturals, for example, 52644304 + ... + 52686496.

It is an arithmetic number, because the mean of its divisors is an integer number (37791794495).

Almost surely, 2^{2222111222200} is an apocalyptic number.

2222111222200 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 2222111222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2721009203640).

2222111222200 is an abundant number, since it is smaller than the sum of its proper divisors (3219907185080).

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

2222111222200 is a wasteful number, since it uses less digits than its factorization.

2222111222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42446 (or 42330 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2222111222200 its reverse (22221112222), we get a palindrome (2244332334422).

2222111222200 divided by its reverse (22221112222) gives a square (100 = 10²).

The spelling of 2222111222200 in words is "two trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, two hundred".