12222210112112 has 160 divisors (see below), whose sum is σ = 31956243669504. Its totient is φ = 4373286220800.

The previous prime is 12222210112093. The next prime is 12222210112117. The reversal of 12222210112112 is 21121101222221.

It is a super-2 number, since 2×12222210112112² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222210112117) 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, 1218287 + ... + 5092017.

Almost surely, 2^{12222210112112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222210112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15978121834752).

12222210112112 is an abundant number, since it is smaller than the sum of its proper divisors (19734033557392).

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

12222210112112 is a wasteful number, since it uses less digits than its factorization.

12222210112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873967 (or 3873961 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12222210112112 its reverse (21121101222221), we get a palindrome (33343311334333).

The spelling of 12222210112112 in words is "twelve trillion, two hundred twenty-two billion, two hundred ten million, one hundred twelve thousand, one hundred twelve".