12162210 has 16 divisors (see below), whose sum is σ = 29189376. Its totient is φ = 3243248.

The previous prime is 12162203. The next prime is 12162211. The reversal of 12162210 is 1226121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12162210.

It is not an unprimeable number, because it can be changed into a prime (12162211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202674 + ... + 202733.

It is an arithmetic number, because the mean of its divisors is an integer number (1824336).

Almost surely, 2^12162210 is an apocalyptic number.

12162210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12162210 is an abundant number, since it is smaller than the sum of its proper divisors (17027166).

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

12162210 is a wasteful number, since it uses less digits than its factorization.

12162210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405417.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 12162210 is about 3487.4360209185. The cubic root of 12162210 is about 229.9698133036.

Adding to 12162210 its reverse (1226121), we get a palindrome (13388331).

The spelling of 12162210 in words is "twelve million, one hundred sixty-two thousand, two hundred ten".