12122170 has 16 divisors (see below), whose sum is σ = 21867048. Its totient is φ = 4838400.

The previous prime is 12122167. The next prime is 12122179. The reversal of 12122170 is 7122121.

It can be written as a sum of positive squares in 4 ways, for example, as 12033961 + 88209 = 3469^2 + 297^2 .

It is not an unprimeable number, because it can be changed into a prime (12122179) 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 7 ways as a sum of consecutive naturals, for example, 5002 + ... + 7018.

Almost surely, 2^12122170 is an apocalyptic number.

12122170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122170 is a deficient number, since it is larger than the sum of its proper divisors (9744878).

12122170 is a wasteful number, since it uses less digits than its factorization.

12122170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 12122170 is about 3481.6906812639. The cubic root of 12122170 is about 229.7171696752.

Adding to 12122170 its reverse (7122121), we get a palindrome (19244291).

The spelling of 12122170 in words is "twelve million, one hundred twenty-two thousand, one hundred seventy".