12212200344 has 16 divisors (see below), whose sum is σ = 30530500920. Its totient is φ = 4070733440.

The previous prime is 12212200333. The next prime is 12212200361. The reversal of 12212200344 is 44300221221.

It is a self number, because there is not a number n which added to its sum of digits gives 12212200344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254420817 + ... + 254420864.

Almost surely, 2^12212200344 is an apocalyptic number.

It is an amenable number.

12212200344 is an abundant number, since it is smaller than the sum of its proper divisors (18318300576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212200344 is a wasteful number, since it uses less digits than its factorization.

12212200344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508841690 (or 508841686 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12212200344 its reverse (44300221221), we get a palindrome (56512421565).

The spelling of 12212200344 in words is "twelve billion, two hundred twelve million, two hundred thousand, three hundred forty-four".