12122567 has 4 divisors (see below), whose sum is σ = 12141000. Its totient is φ = 12104136.

The previous prime is 12122563. The next prime is 12122597. The reversal of 12122567 is 76522121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12122567 - 2² = 12122563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8192 + ... + 9557.

It is an arithmetic number, because the mean of its divisors is an integer number (3035250).

Almost surely, 2^12122567 is an apocalyptic number.

12122567 is a deficient number, since it is larger than the sum of its proper divisors (18433).

12122567 is an equidigital number, since it uses as much as digits as its factorization.

12122567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18432.

The product of its digits is 1680, while the sum is 26.

The square root of 12122567 is about 3481.7476933287. The cubic root of 12122567 is about 229.7196773869.

Adding to 12122567 its reverse (76522121), we get a palindrome (88644688).

The spelling of 12122567 in words is "twelve million, one hundred twenty-two thousand, five hundred sixty-seven".