22112120000 has 280 divisors, whose sum is σ = 57155516880. Its totient is φ = 8478720000.

The previous prime is 22112119961. The next prime is 22112120021. The reversal of 22112120000 is 2121122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 159079931 + ... + 159080069.

It is an arithmetic number, because the mean of its divisors is an integer number (204126846).

Almost surely, 2^22112120000 is an apocalyptic number.

22112120000 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 22112120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28577758440).

22112120000 is an abundant number, since it is smaller than the sum of its proper divisors (35043396880).

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

22112120000 is an equidigital number, since it uses as much as digits as its factorization.

22112120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22112120000 its reverse (2121122), we get a palindrome (22114241122).

The spelling of 22112120000 in words is "twenty-two billion, one hundred twelve million, one hundred twenty thousand".