12045222 has 24 divisors (see below), whose sum is σ = 29826576. Its totient is φ = 3441456.

The previous prime is 12045217. The next prime is 12045223. The reversal of 12045222 is 22254021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12045195 and 12045204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47673 + ... + 47924.

It is an arithmetic number, because the mean of its divisors is an integer number (1242774).

Almost surely, 2^12045222 is an apocalyptic number.

12045222 is an abundant number, since it is smaller than the sum of its proper divisors (17781354).

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

12045222 is a wasteful number, since it uses less digits than its factorization.

12045222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95612 (or 95609 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 12045222 is about 3470.6227106962. The cubic root of 12045222 is about 229.2300783785.

Adding to 12045222 its reverse (22254021), we get a palindrome (34299243).

The spelling of 12045222 in words is "twelve million, forty-five thousand, two hundred twenty-two".