12231032112 has 120 divisors (see below), whose sum is σ = 38134278000. Its totient is φ = 3633606144.

The previous prime is 12231032081. The next prime is 12231032117. The reversal of 12231032112 is 21123013221.

12231032112 is a `hidden beast` number, since 1 + 22 + 310 + 321 + 12 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12231032117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58362 + ... + 166937.

It is an arithmetic number, because the mean of its divisors is an integer number (317785650).

Almost surely, 2^12231032112 is an apocalyptic number.

12231032112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12231032112 is an abundant number, since it is smaller than the sum of its proper divisors (25903245888).

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

12231032112 is a wasteful number, since it uses less digits than its factorization.

12231032112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225355 (or 225346 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12231032112 its reverse (21123013221), we get a palindrome (33354045333).

The spelling of 12231032112 in words is "twelve billion, two hundred thirty-one million, thirty-two thousand, one hundred twelve".