12021430716 has 18 divisors (see below), whose sum is σ = 30387505512. Its totient is φ = 4007143560.

The previous prime is 12021430699. The next prime is 12021430741. The reversal of 12021430716 is 61703412021.

12021430716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 12021430716.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166964280 + ... + 166964351.

Almost surely, 2^12021430716 is an apocalyptic number.

It is an amenable number.

12021430716 is an abundant number, since it is smaller than the sum of its proper divisors (18366074796).

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

12021430716 is a wasteful number, since it uses less digits than its factorization.

12021430716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333928641 (or 333928636 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 12021430716 its reverse (61703412021), we get a palindrome (73724842737).

The spelling of 12021430716 in words is "twelve billion, twenty-one million, four hundred thirty thousand, seven hundred sixteen".