12233444449 has 4 divisors (see below), whose sum is σ = 12233795860. Its totient is φ = 12233093040.

The previous prime is 12233444437. The next prime is 12233444459. The reversal of 12233444449 is 94444433221.

It is a happy number.

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 9473518224 + 2759926225 = 97332^2 + 52535^2 .

It is a cyclic number.

It is not a de Polignac number, because 12233444449 - 2²⁷ = 12099226721 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12233444459) 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, 116934 + ... + 195295.

It is an arithmetic number, because the mean of its divisors is an integer number (3058448965).

Almost surely, 2^12233444449 is an apocalyptic number.

It is an amenable number.

12233444449 is a deficient number, since it is larger than the sum of its proper divisors (351411).

12233444449 is an equidigital number, since it uses as much as digits as its factorization.

12233444449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351410.

The product of its digits is 331776, while the sum is 40.

The spelling of 12233444449 in words is "twelve billion, two hundred thirty-three million, four hundred forty-four thousand, four hundred forty-nine".