12191613224 has 64 divisors (see below), whose sum is σ = 27188179200. Its totient is φ = 5014485504.

The previous prime is 12191613221. The next prime is 12191613229. The reversal of 12191613224 is 42231619121.

It is a super-2 number, since 2×12191613224² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12191613221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248732 + ... + 293684.

It is an arithmetic number, because the mean of its divisors is an integer number (424815300).

Almost surely, 2^12191613224 is an apocalyptic number.

12191613224 is a gapful number since it is divisible by the number (14) 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 12191613224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13594089600).

12191613224 is an abundant number, since it is smaller than the sum of its proper divisors (14996565976).

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

12191613224 is a wasteful number, since it uses less digits than its factorization.

12191613224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45162 (or 45158 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The spelling of 12191613224 in words is "twelve billion, one hundred ninety-one million, six hundred thirteen thousand, two hundred twenty-four".