12213404443 has 8 divisors (see below), whose sum is σ = 12477390912. Its totient is φ = 11949590016.

The previous prime is 12213404431. The next prime is 12213404447. The reversal of 12213404443 is 34440431221.

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 12213404443 - 2³³ = 3623469851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213404447) 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, 106021 + ... + 188857.

It is an arithmetic number, because the mean of its divisors is an integer number (1559673864).

Almost surely, 2^12213404443 is an apocalyptic number.

12213404443 is a deficient number, since it is larger than the sum of its proper divisors (263986469).

12213404443 is an equidigital number, since it uses as much as digits as its factorization.

12213404443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86021.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12213404443 its reverse (34440431221), we get a palindrome (46653835664).

The spelling of 12213404443 in words is "twelve billion, two hundred thirteen million, four hundred four thousand, four hundred forty-three".