12222111132 has 144 divisors (see below), whose sum is σ = 39846643200. Its totient is φ = 3065086080.

The previous prime is 12222111127. The next prime is 12222111157. The reversal of 12222111132 is 23111122221.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4369 + ... + 156407.

It is an arithmetic number, because the mean of its divisors is an integer number (276712800).

Almost surely, 2^12222111132 is an apocalyptic number.

12222111132 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 12222111132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19923321600).

12222111132 is an abundant number, since it is smaller than the sum of its proper divisors (27624532068).

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

12222111132 is a wasteful number, since it uses less digits than its factorization.

12222111132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152096 (or 152091 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 12222111132 its reverse (23111122221), we get a palindrome (35333233353).

The spelling of 12222111132 in words is "twelve billion, two hundred twenty-two million, one hundred eleven thousand, one hundred thirty-two".