12240444222212 has 6 divisors (see below), whose sum is σ = 21420777388878. Its totient is φ = 6120222111104.

The previous prime is 12240444222211. The next prime is 12240444222217. The reversal of 12240444222212 is 21222244404221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10123494881536 + 2116949340676 = 3181744^2 + 1454974^2 .

It is not an unprimeable number, because it can be changed into a prime (12240444222211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1530055527773 + ... + 1530055527780.

It is an arithmetic number, because the mean of its divisors is an integer number (3570129564813).

Almost surely, 2^{12240444222212} is an apocalyptic number.

It is an amenable number.

12240444222212 is a deficient number, since it is larger than the sum of its proper divisors (9180333166666).

12240444222212 is a wasteful number, since it uses less digits than its factorization.

12240444222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060111055557 (or 3060111055555 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 12240444222212 its reverse (21222244404221), we get a palindrome (33462688626433).

The spelling of 12240444222212 in words is "twelve trillion, two hundred forty billion, four hundred forty-four million, two hundred twenty-two thousand, two hundred twelve".