12042222 has 16 divisors (see below), whose sum is σ = 25501392. Its totient is φ = 3777920.

The previous prime is 12042197. The next prime is 12042241. The reversal of 12042222 is 22224021.

It is a super-2 number, since 2×12042222² = 290030221394568, which contains 22 as substring.

12042222 is a modest number, since divided by 2222 gives 1204 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58929 + ... + 59132.

It is an arithmetic number, because the mean of its divisors is an integer number (1593837).

Almost surely, 2^12042222 is an apocalyptic number.

12042222 is an abundant number, since it is smaller than the sum of its proper divisors (13459170).

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

12042222 is a wasteful number, since it uses less digits than its factorization.

12042222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118083.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12042222 is about 3470.1904846852. The cubic root of 12042222 is about 229.2110460094.

Adding to 12042222 its reverse (22224021), we get a palindrome (34266243).

The spelling of 12042222 in words is "twelve million, forty-two thousand, two hundred twenty-two".