12213241243 has 8 divisors (see below), whose sum is σ = 13964292320. Its totient is φ = 10463765760.

The previous prime is 12213241207. The next prime is 12213241273. The reversal of 12213241243 is 34214231221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12213241243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213241273) 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, 377238 + ... + 408331.

It is an arithmetic number, because the mean of its divisors is an integer number (1745536540).

Almost surely, 2^12213241243 is an apocalyptic number.

12213241243 is a deficient number, since it is larger than the sum of its proper divisors (1751051077).

12213241243 is an equidigital number, since it uses as much as digits as its factorization.

12213241243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787797.

The product of its digits is 2304, while the sum is 25.

Adding to 12213241243 its reverse (34214231221), we get a palindrome (46427472464).

The spelling of 12213241243 in words is "twelve billion, two hundred thirteen million, two hundred forty-one thousand, two hundred forty-three".