12210042 has 16 divisors (see below), whose sum is σ = 26298720. Its totient is φ = 3756912.

The previous prime is 12210041. The next prime is 12210059. The reversal of 12210042 is 24001221.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12210041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78192 + ... + 78347.

It is an arithmetic number, because the mean of its divisors is an integer number (1643670).

Almost surely, 2^12210042 is an apocalyptic number.

12210042 is an abundant number, since it is smaller than the sum of its proper divisors (14088678).

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

12210042 is a wasteful number, since it uses less digits than its factorization.

12210042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156557.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12210042 is about 3494.2870517460. The cubic root of 12210042 is about 230.2708969399.

Adding to 12210042 its reverse (24001221), we get a palindrome (36211263).

The spelling of 12210042 in words is "twelve million, two hundred ten thousand, forty-two".