12422212 has 24 divisors (see below), whose sum is σ = 23954112. Its totient is φ = 5589600.

The previous prime is 12422209. The next prime is 12422243. The reversal of 12422212 is 21222421.

It is a super-2 number, since 2×12422212² = 308622701945888, which contains 22 as substring.

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

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3162 + ... + 5902.

It is an arithmetic number, because the mean of its divisors is an integer number (998088).

Almost surely, 2^12422212 is an apocalyptic number.

It is an amenable number.

12422212 is a deficient number, since it is larger than the sum of its proper divisors (11531900).

12422212 is a wasteful number, since it uses less digits than its factorization.

12422212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859 (or 2857 counting only the distinct ones).

The product of its digits is 128, while the sum is 16.

The square root of 12422212 is about 3524.5158532769. The cubic root of 12422212 is about 231.5970263796.

Adding to 12422212 its reverse (21222421), we get a palindrome (33644633).

It can be divided in two parts, 12 and 422212, that added together give a palindrome (422224).

The spelling of 12422212 in words is "twelve million, four hundred twenty-two thousand, two hundred twelve".