112021122222 has 96 divisors (see below), whose sum is σ = 266915844000. Its totient is φ = 33816787200.

The previous prime is 112021122163. The next prime is 112021122223. The reversal of 112021122222 is 222221120211.

It is a happy number.

112021122222 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112021122195 and 112021122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021122223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 945804 + ... + 1057632.

It is an arithmetic number, because the mean of its divisors is an integer number (2780373375).

Almost surely, 2^112021122222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112021122222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133457922000).

112021122222 is an abundant number, since it is smaller than the sum of its proper divisors (154894721778).

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

112021122222 is a wasteful number, since it uses less digits than its factorization.

112021122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111986 (or 111983 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 112021122222 its reverse (222221120211), we get a palindrome (334242242433).

The spelling of 112021122222 in words is "one hundred twelve billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".