12242222 has 8 divisors (see below), whose sum is σ = 18417000. Its totient is φ = 6103224.

The previous prime is 12242221. The next prime is 12242257. The reversal of 12242222 is 22224221.

It is a sphenic number, since it is the product of 3 distinct primes.

12242222 is a modest number, since divided by 2222 gives 1224 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12242222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8072 + ... + 9467.

It is an arithmetic number, because the mean of its divisors is an integer number (2302125).

Almost surely, 2^12242222 is an apocalyptic number.

12242222 is a deficient number, since it is larger than the sum of its proper divisors (6174778).

12242222 is a wasteful number, since it uses less digits than its factorization.

12242222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17890.

The product of its digits is 256, while the sum is 17.

The square root of 12242222 is about 3498.8886807099. Note that the first 3 decimals coincide. The cubic root of 12242222 is about 230.4730151937.

Adding to 12242222 its reverse (22224221), we get a palindrome (34466443).

The spelling of 12242222 in words is "twelve million, two hundred forty-two thousand, two hundred twenty-two".