2222111211200 has 84 divisors (see below), whose sum is σ = 5471971008792. Its totient is φ = 888163584000.

The previous prime is 2222111211181. The next prime is 2222111211241. The reversal of 2222111211200 is 21121112222.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1559900 + ... + 2622500.

Almost surely, 2^{2222111211200} is an apocalyptic number.

2222111211200 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 2222111211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2735985504396).

2222111211200 is an abundant number, since it is smaller than the sum of its proper divisors (3249859797592).

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

2222111211200 is a wasteful number, since it uses less digits than its factorization.

2222111211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063930 (or 1063915 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2222111211200 its reverse (21121112222), we get a palindrome (2243232323422).

The spelling of 2222111211200 in words is "two trillion, two hundred twenty-two billion, one hundred eleven million, two hundred eleven thousand, two hundred".