12223887 has 16 divisors (see below), whose sum is σ = 17619840. Its totient is φ = 7493472.

The previous prime is 12223853. The next prime is 12223891. The reversal of 12223887 is 78832221.

It is not a de Polignac number, because 12223887 - 2⁶ = 12223823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14368 + ... + 15194.

It is an arithmetic number, because the mean of its divisors is an integer number (1101240).

Almost surely, 2^12223887 is an apocalyptic number.

12223887 is a deficient number, since it is larger than the sum of its proper divisors (5395953).

12223887 is a wasteful number, since it uses less digits than its factorization.

12223887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222.

The product of its digits is 10752, while the sum is 33.

The square root of 12223887 is about 3496.2675812929. The cubic root of 12223887 is about 230.3578989974.

The spelling of 12223887 in words is "twelve million, two hundred twenty-three thousand, eight hundred eighty-seven".