2222112001122 has 128 divisors (see below), whose sum is σ = 5389962923520. Its totient is φ = 674507347200.

The previous prime is 2222112001117. The next prime is 2222112001229. The reversal of 2222112001122 is 2211002112222.

It is a happy number.

2222112001122 is a `hidden beast` number, since 222 + 211 + 200 + 11 + 22 = 666.

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 = 2222112001095 and 2222112001104.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19583283 + ... + 19696425.

It is an arithmetic number, because the mean of its divisors is an integer number (42109085340).

Almost surely, 2^{2222112001122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222112001122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2694981461760).

2222112001122 is an abundant number, since it is smaller than the sum of its proper divisors (3167850922398).

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

2222112001122 is a wasteful number, since it uses less digits than its factorization.

2222112001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113545 (or 113539 counting only the distinct ones).

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

Adding to 2222112001122 its reverse (2211002112222), we get a palindrome (4433114113344).

The spelling of 2222112001122 in words is "two trillion, two hundred twenty-two billion, one hundred twelve million, one thousand, one hundred twenty-two".