12221232113 has 8 divisors (see below), whose sum is σ = 12653340480. Its totient is φ = 11789836240.

The previous prime is 12221232097. The next prime is 12221232197. The reversal of 12221232113 is 31123212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12221232113 - 2⁴ = 12221232097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221232913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143093 + ... + 211938.

It is an arithmetic number, because the mean of its divisors is an integer number (1581667560).

Almost surely, 2^12221232113 is an apocalyptic number.

It is an amenable number.

12221232113 is a deficient number, since it is larger than the sum of its proper divisors (432108367).

12221232113 is a wasteful number, since it uses less digits than its factorization.

12221232113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356247.

The product of its digits is 288, while the sum is 20.

Adding to 12221232113 its reverse (31123212221), we get a palindrome (43344444334).

The spelling of 12221232113 in words is "twelve billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred thirteen".