12071223 has 24 divisors (see below), whose sum is σ = 17971200. Its totient is φ = 7804944.

The previous prime is 12071219. The next prime is 12071233. The reversal of 12071223 is 32217021.

12071223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12071223 - 2² = 12071219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12071196 and 12071205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67348 + ... + 67526.

It is an arithmetic number, because the mean of its divisors is an integer number (748800).

Almost surely, 2^12071223 is an apocalyptic number.

12071223 is a deficient number, since it is larger than the sum of its proper divisors (5899977).

12071223 is a wasteful number, since it uses less digits than its factorization.

12071223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12071223 is about 3474.3665609719. The cubic root of 12071223 is about 229.3948996884.

Adding to 12071223 its sum of digits (18), we get a triangular number (12071241 = T₄₉₁₃).

Adding to 12071223 its reverse (32217021), we get a palindrome (44288244).

The spelling of 12071223 in words is "twelve million, seventy-one thousand, two hundred twenty-three".