12242224321 has 4 divisors (see below), whose sum is σ = 12242504644. Its totient is φ = 12241944000.

The previous prime is 12242224303. The next prime is 12242224327. The reversal of 12242224321 is 12342224221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5541164721 + 6701059600 = 74439^2 + 81860^2 .

It is a cyclic number.

It is not a de Polignac number, because 12242224321 - 2⁷ = 12242224193 is a prime.

It is a super-2 number, since 2×12242224321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12242224327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58980 + ... + 167221.

It is an arithmetic number, because the mean of its divisors is an integer number (3060626161).

Almost surely, 2^12242224321 is an apocalyptic number.

It is an amenable number.

12242224321 is a deficient number, since it is larger than the sum of its proper divisors (280323).

12242224321 is an equidigital number, since it uses as much as digits as its factorization.

12242224321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280322.

The product of its digits is 3072, while the sum is 25.

Adding to 12242224321 its reverse (12342224221), we get a palindrome (24584448542).

The spelling of 12242224321 in words is "twelve billion, two hundred forty-two million, two hundred twenty-four thousand, three hundred twenty-one".