12301432221 has 16 divisors (see below), whose sum is σ = 17668663040. Its totient is φ = 7567940160.

The previous prime is 12301432177. The next prime is 12301432267. The reversal of 12301432221 is 12223410321.

It is not a de Polignac number, because 12301432221 - 2⁷ = 12301432093 is a prime.

It is a super-3 number, since 3×12301432221³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301432321) 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, 98175 + ... + 185043.

It is an arithmetic number, because the mean of its divisors is an integer number (1104291440).

Almost surely, 2^12301432221 is an apocalyptic number.

It is an amenable number.

12301432221 is a deficient number, since it is larger than the sum of its proper divisors (5367230819).

12301432221 is a wasteful number, since it uses less digits than its factorization.

12301432221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90516.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12301432221 its reverse (12223410321), we get a palindrome (24524842542).

The spelling of 12301432221 in words is "twelve billion, three hundred one million, four hundred thirty-two thousand, two hundred twenty-one".