12012222 has 16 divisors (see below), whose sum is σ = 24583680. Its totient is φ = 3910872.

The previous prime is 12012197. The next prime is 12012257. The reversal of 12012222 is 22221021.

It is a junction number, because it is equal to n+sod(n) for n = 12012198 and 12012207.

It is a congruent number.

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, 23022 + ... + 23537.

It is an arithmetic number, because the mean of its divisors is an integer number (1536480).

Almost surely, 2^12012222 is an apocalyptic number.

12012222 is an abundant number, since it is smaller than the sum of its proper divisors (12571458).

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

12012222 is a wasteful number, since it uses less digits than its factorization.

12012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46607.

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

The square root of 12012222 is about 3465.8652599315. The cubic root of 12012222 is about 229.0205482346.

Adding to 12012222 its reverse (22221021), we get a palindrome (34233243).

The spelling of 12012222 in words is "twelve million, twelve thousand, two hundred twenty-two".