12223456789 has 32 divisors (see below), whose sum is σ = 13864078080. Its totient is φ = 10718687232.

The previous prime is 12223456787. The next prime is 12223456793. The reversal of 12223456789 is 98765432221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12223456789 - 2¹ = 12223456787 is a prime.

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 (12223456787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3118659 + ... + 3122575.

It is an arithmetic number, because the mean of its divisors is an integer number (433252440).

Almost surely, 2^12223456789 is an apocalyptic number.

12223456789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12223456789 is a deficient number, since it is larger than the sum of its proper divisors (1640621291).

12223456789 is a wasteful number, since it uses less digits than its factorization.

12223456789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4189.

The product of its digits is 1451520, while the sum is 49.

The spelling of 12223456789 in words is "twelve billion, two hundred twenty-three million, four hundred fifty-six thousand, seven hundred eighty-nine".