12222220122112 has 192 divisors, whose sum is σ = 32812499865600. Its totient is φ = 4395602903040.

The previous prime is 12222220122097. The next prime is 12222220122181. The reversal of 12222220122112 is 21122102222221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930912 + ... + 5031007.

It is an arithmetic number, because the mean of its divisors is an integer number (170898436800).

Almost surely, 2^{12222220122112} is an apocalyptic number.

It is an amenable number.

12222220122112 is an abundant number, since it is smaller than the sum of its proper divisors (20590279743488).

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

12222220122112 is a wasteful number, since it uses less digits than its factorization.

12222220122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961972 (or 5961952 counting only the distinct ones).

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

Adding to 12222220122112 its reverse (21122102222221), we get a palindrome (33344322344333).

The spelling of 12222220122112 in words is "twelve trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, one hundred twelve".