12201224312 has 32 divisors (see below), whose sum is σ = 23160200400. Its totient is φ = 6025324800.

The previous prime is 12201224293. The next prime is 12201224323. The reversal of 12201224312 is 21342210221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660887 + ... + 679097.

Almost surely, 2^12201224312 is an apocalyptic number.

It is an amenable number.

12201224312 is a deficient number, since it is larger than the sum of its proper divisors (10958976088).

12201224312 is a wasteful number, since it uses less digits than its factorization.

12201224312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19247 (or 19243 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12201224312 its reverse (21342210221), we get a palindrome (33543434533).

The spelling of 12201224312 in words is "twelve billion, two hundred one million, two hundred twenty-four thousand, three hundred twelve".