12231001116 has 36 divisors (see below), whose sum is σ = 30922242624. Its totient is φ = 4076342400.

The previous prime is 12231001103. The next prime is 12231001117. The reversal of 12231001116 is 61110013221.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231001117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232501 + ... + 280211.

It is an arithmetic number, because the mean of its divisors is an integer number (858951184).

Almost surely, 2^12231001116 is an apocalyptic number.

It is an amenable number.

12231001116 is an abundant number, since it is smaller than the sum of its proper divisors (18691241508).

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

12231001116 is a wasteful number, since it uses less digits than its factorization.

12231001116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54842 (or 54837 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12231001116 its reverse (61110013221), we get a palindrome (73341014337).

The spelling of 12231001116 in words is "twelve billion, two hundred thirty-one million, one thousand, one hundred sixteen".