12221102210112 has 168 divisors, whose sum is σ = 36163754212352. Its totient is φ = 3941834803200.

The previous prime is 12221102210099. The next prime is 12221102210123. The reversal of 12221102210112 is 21101220112221.

12221102210112 is a `hidden beast` number, since 1 + 222 + 110 + 221 + 0 + 112 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176221908 + ... + 176291244.

Almost surely, 2^{12221102210112} is an apocalyptic number.

12221102210112 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 12221102210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18081877106176).

12221102210112 is an abundant number, since it is smaller than the sum of its proper divisors (23942652002240).

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

12221102210112 is a wasteful number, since it uses less digits than its factorization.

12221102210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79257 (or 79244 counting only the distinct ones).

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

Adding to 12221102210112 its reverse (21101220112221), we get a palindrome (33322322322333).

The spelling of 12221102210112 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, two hundred ten thousand, one hundred twelve".