12221201112 has 64 divisors (see below), whose sum is σ = 31714956000. Its totient is φ = 3919770624.

The previous prime is 12221201107. The next prime is 12221201119. The reversal of 12221201112 is 21110212221.

12221201112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12221201091 and 12221201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221201119) 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 15 ways as a sum of consecutive naturals, for example, 173964 + ... + 233892.

Almost surely, 2^12221201112 is an apocalyptic number.

12221201112 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 12221201112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15857478000).

12221201112 is an abundant number, since it is smaller than the sum of its proper divisors (19493754888).

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

12221201112 is a wasteful number, since it uses less digits than its factorization.

12221201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60260 (or 60256 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12221201112 its reverse (21110212221), we get a palindrome (33331413333).

The spelling of 12221201112 in words is "twelve billion, two hundred twenty-one million, two hundred one thousand, one hundred twelve".