12166122 has 16 divisors (see below), whose sum is σ = 24606720. Its totient is φ = 4009632.

The previous prime is 12166073. The next prime is 12166139. The reversal of 12166122 is 22166121.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10858 + ... + 11925.

It is an arithmetic number, because the mean of its divisors is an integer number (1537920).

Almost surely, 2^12166122 is an apocalyptic number.

12166122 is an abundant number, since it is smaller than the sum of its proper divisors (12440598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12166122 is a wasteful number, since it uses less digits than its factorization.

12166122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22877.

The product of its digits is 288, while the sum is 21.

The square root of 12166122 is about 3487.9968463288. The cubic root of 12166122 is about 229.9944674158.

Subtracting 12166122 from its reverse (22166121), we obtain a palindrome (9999999).

The spelling of 12166122 in words is "twelve million, one hundred sixty-six thousand, one hundred twenty-two".