222111120000 has 1920 divisors, whose sum is σ = 1000414514880. Its totient is φ = 43008000000.

The previous prime is 222111119977. The next prime is 222111120019. The reversal of 222111120000 is 21111222.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 2199119950 + ... + 2199120050.

Almost surely, 2^222111120000 is an apocalyptic number.

222111120000 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 222111120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500207257440).

222111120000 is an abundant number, since it is smaller than the sum of its proper divisors (778303394880).

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

222111120000 is a wasteful number, since it uses less digits than its factorization.

222111120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 222111120000 its reverse (21111222), we get a palindrome (222132231222).

The spelling of 222111120000 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred twenty thousand".