12222202122112 has 64 divisors (see below), whose sum is σ = 24558568927200. Its totient is φ = 6058598989824.

The previous prime is 12222202122083. The next prime is 12222202122113. The reversal of 12222202122112 is 21122120222221.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222202122113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13032013 + ... + 13938355.

Almost surely, 2^{12222202122112} 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 12222202122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12279284463600).

12222202122112 is an abundant number, since it is smaller than the sum of its proper divisors (12336366805088).

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

12222202122112 is an equidigital number, since it uses as much as digits as its factorization.

12222202122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907263 (or 907251 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12222202122112 its reverse (21122120222221), we get a palindrome (33344322344333).

The spelling of 12222202122112 in words is "twelve trillion, two hundred twenty-two billion, two hundred two million, one hundred twenty-two thousand, one hundred twelve".