12001212232 has 16 divisors (see below), whose sum is σ = 22503944700. Its totient is φ = 6000160320.

The previous prime is 12001212221. The next prime is 12001212253. The reversal of 12001212232 is 23221210021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11203375716 + 797836516 = 105846^2 + 28246^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 77394 + ... + 173182.

Almost surely, 2^12001212232 is an apocalyptic number.

It is an amenable number.

12001212232 is a deficient number, since it is larger than the sum of its proper divisors (10502732468).

12001212232 is a wasteful number, since it uses less digits than its factorization.

12001212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111456 (or 111452 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12001212232 its reverse (23221210021), we get a palindrome (35222422253).

The spelling of 12001212232 in words is "twelve billion, one million, two hundred twelve thousand, two hundred thirty-two".