22222412 has 12 divisors (see below), whose sum is σ = 40143936. Its totient is φ = 10752720.

The previous prime is 22222411. The next prime is 22222427. The reversal of 22222412 is 21422222.

22222412 is nontrivially palindromic in base 13.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22222411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89483 + ... + 89730.

It is an arithmetic number, because the mean of its divisors is an integer number (3345328).

Almost surely, 2^22222412 is an apocalyptic number.

It is an amenable number.

22222412 is a deficient number, since it is larger than the sum of its proper divisors (17921524).

22222412 is a wasteful number, since it uses less digits than its factorization.

22222412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179248 (or 179246 counting only the distinct ones).

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

The square root of 22222412 is about 4714.0653368404. The cubic root of 22222412 is about 281.1450220889.

Adding to 22222412 its reverse (21422222), we get a palindrome (43644634).

The spelling of 22222412 in words is "twenty-two million, two hundred twenty-two thousand, four hundred twelve".