12012001232 has 40 divisors (see below), whose sum is σ = 29016005952. Its totient is φ = 4680000000.

The previous prime is 12012001193. The next prime is 12012001237. The reversal of 12012001232 is 23210021021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012001237) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4873769 + ... + 4876232.

Almost surely, 2^12012001232 is an apocalyptic number.

It is an amenable number.

12012001232 is an abundant number, since it is smaller than the sum of its proper divisors (17004004720).

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

12012001232 is a wasteful number, since it uses less digits than its factorization.

12012001232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9750027 (or 9750021 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12012001232 its reverse (23210021021), we get a palindrome (35222022253).

The spelling of 12012001232 in words is "twelve billion, twelve million, one thousand, two hundred thirty-two".