12012243292 has 48 divisors (see below), whose sum is σ = 24310782720. Its totient is φ = 5087002752.

The previous prime is 12012243277. The next prime is 12012243301. The reversal of 12012243292 is 29234221021.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 12012243292.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1220463 + ... + 1230265.

It is an arithmetic number, because the mean of its divisors is an integer number (506474640).

Almost surely, 2^12012243292 is an apocalyptic number.

It is an amenable number.

12012243292 is an abundant number, since it is smaller than the sum of its proper divisors (12298539428).

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

12012243292 is a wasteful number, since it uses less digits than its factorization.

12012243292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10330 (or 10328 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 12012243292 in words is "twelve billion, twelve million, two hundred forty-three thousand, two hundred ninety-two".