12223445678 has 8 divisors (see below), whose sum is σ = 18335714040. Its totient is φ = 6111541000.

The previous prime is 12223445671. The next prime is 12223445681. The reversal of 12223445678 is 87654432221.

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

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223445671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20333 + ... + 157671.

It is an arithmetic number, because the mean of its divisors is an integer number (2291964255).

Almost surely, 2^12223445678 is an apocalyptic number.

12223445678 is a deficient number, since it is larger than the sum of its proper divisors (6112268362).

12223445678 is a wasteful number, since it uses less digits than its factorization.

12223445678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181842.

The product of its digits is 645120, while the sum is 44.

Adding to 12223445678 its reverse (87654432221), we get a palindrome (99877877899).

The spelling of 12223445678 in words is "twelve billion, two hundred twenty-three million, four hundred forty-five thousand, six hundred seventy-eight".