12231207 has 6 divisors (see below), whose sum is σ = 17667312. Its totient is φ = 8154132.

The previous prime is 12231203. The next prime is 12231227. The reversal of 12231207 is 70213221.

12231207 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 12231207 - 2² = 12231203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12231207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 679503 + ... + 679520.

It is an arithmetic number, because the mean of its divisors is an integer number (2944552).

Almost surely, 2^12231207 is an apocalyptic number.

12231207 is a deficient number, since it is larger than the sum of its proper divisors (5436105).

12231207 is a wasteful number, since it uses less digits than its factorization.

12231207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359029 (or 1359026 counting only the distinct ones).

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

The square root of 12231207 is about 3497.3142552536. The cubic root of 12231207 is about 230.4038713723.

Adding to 12231207 its reverse (70213221), we get a palindrome (82444428).

It can be divided in two parts, 122 and 31207, that added together give a square (31329 = 177²).

The spelling of 12231207 in words is "twelve million, two hundred thirty-one thousand, two hundred seven".