12225312443 has 8 divisors (see below), whose sum is σ = 13023796800. Its totient is φ = 11442332808.

The previous prime is 12225312431. The next prime is 12225312479. The reversal of 12225312443 is 34421352221.

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 12225312443 - 2²⁶ = 12158203579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12225312403) 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, 3874553 + ... + 3877706.

It is an arithmetic number, because the mean of its divisors is an integer number (1627974600).

Almost surely, 2^12225312443 is an apocalyptic number.

12225312443 is a deficient number, since it is larger than the sum of its proper divisors (798484357).

12225312443 is an equidigital number, since it uses as much as digits as its factorization.

12225312443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7752361.

The product of its digits is 11520, while the sum is 29.

Adding to 12225312443 its reverse (34421352221), we get a palindrome (46646664664).

The spelling of 12225312443 in words is "twelve billion, two hundred twenty-five million, three hundred twelve thousand, four hundred forty-three".