222112120120 has 128 divisors (see below), whose sum is σ = 559530478080. Its totient is φ = 78670144000.

The previous prime is 222112120091. The next prime is 222112120129. The reversal of 222112120120 is 21021211222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222112120094 and 222112120103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112120129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2550090 + ... + 2635750.

It is an arithmetic number, because the mean of its divisors is an integer number (4371331860).

Almost surely, 2^222112120120 is an apocalyptic number.

222112120120 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 222112120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279765239040).

222112120120 is an abundant number, since it is smaller than the sum of its proper divisors (337418357960).

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

222112120120 is a wasteful number, since it uses less digits than its factorization.

222112120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85837 (or 85833 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222112120120 its reverse (21021211222), we get a palindrome (243133331342).

The spelling of 222112120120 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred twenty thousand, one hundred twenty".