12422444212 has 6 divisors (see below), whose sum is σ = 21739277378. Its totient is φ = 6211222104.

The previous prime is 12422444189. The next prime is 12422444227. The reversal of 12422444212 is 21244422421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12335656356 + 86787856 = 111066^2 + 9316^2 .

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

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 as a sum of consecutive naturals, namely, 1552805523 + ... + 1552805530.

Almost surely, 2^12422444212 is an apocalyptic number.

It is an amenable number.

12422444212 is a deficient number, since it is larger than the sum of its proper divisors (9316833166).

12422444212 is a wasteful number, since it uses less digits than its factorization.

12422444212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105611057 (or 3105611055 counting only the distinct ones).

The product of its digits is 8192, while the sum is 28.

Adding to 12422444212 its reverse (21244422421), we get a palindrome (33666866633).

It can be divided in two parts, 12 and 422444212, that added together give a palindrome (422444224).

The spelling of 12422444212 in words is "twelve billion, four hundred twenty-two million, four hundred forty-four thousand, two hundred twelve".