12223357891 has 16 divisors (see below), whose sum is σ = 12656160000. Its totient is φ = 11798142048.

The previous prime is 12223357879. The next prime is 12223357897. The reversal of 12223357891 is 19875332221.

It is a cyclic number.

It is not a de Polignac number, because 12223357891 - 2⁷ = 12223357763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223357897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270200 + ... + 1279786.

It is an arithmetic number, because the mean of its divisors is an integer number (791010000).

Almost surely, 2^12223357891 is an apocalyptic number.

12223357891 is a deficient number, since it is larger than the sum of its proper divisors (432802109).

12223357891 is a wasteful number, since it uses less digits than its factorization.

12223357891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9978.

The product of its digits is 181440, while the sum is 43.

The spelling of 12223357891 in words is "twelve billion, two hundred twenty-three million, three hundred fifty-seven thousand, eight hundred ninety-one".