2222111001200 has 120 divisors (see below), whose sum is σ = 5440330415616. Its totient is φ = 871986816000.

The previous prime is 2222111001197. The next prime is 2222111001221. The reversal of 2222111001200 is 21001112222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9226310 + ... + 9464090.

Almost surely, 2^{2222111001200} is an apocalyptic number.

2222111001200 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 2222111001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2720165207808).

2222111001200 is an abundant number, since it is smaller than the sum of its proper divisors (3218219414416).

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

2222111001200 is a wasteful number, since it uses less digits than its factorization.

2222111001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238243 (or 238232 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2222111001200 its reverse (21001112222), we get a palindrome (2243112113422).

The spelling of 2222111001200 in words is "two trillion, two hundred twenty-two billion, one hundred eleven million, one thousand, two hundred".