12222110211012 has 192 divisors, whose sum is σ = 34600777962240. Its totient is φ = 3708431880192.

The previous prime is 12222110210977. The next prime is 12222110211043. The reversal of 12222110211012 is 21011201122221.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37562083 + ... + 37886069.

It is an arithmetic number, because the mean of its divisors is an integer number (180212385220).

Almost surely, 2^{12222110211012} is an apocalyptic number.

12222110211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222110211012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17300388981120).

12222110211012 is an abundant number, since it is smaller than the sum of its proper divisors (22378667751228).

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

12222110211012 is a wasteful number, since it uses less digits than its factorization.

12222110211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324387 (or 324379 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12222110211012 its reverse (21011201122221), we get a palindrome (33233311333233).

The spelling of 12222110211012 in words is "twelve trillion, two hundred twenty-two billion, one hundred ten million, two hundred eleven thousand, twelve".