12190856020 has 72 divisors (see below), whose sum is σ = 30741258240. Its totient is φ = 4044882240.

The previous prime is 12190856011. The next prime is 12190856033. The reversal of 12190856020 is 2065809121.

12190856020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 170260 + ... + 231019.

It is an arithmetic number, because the mean of its divisors is an integer number (426961920).

Almost surely, 2^12190856020 is an apocalyptic number.

12190856020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12190856020 is an abundant number, since it is smaller than the sum of its proper divisors (18550402220).

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

12190856020 is a wasteful number, since it uses less digits than its factorization.

12190856020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401333 (or 401324 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 12190856020 in words is "twelve billion, one hundred ninety million, eight hundred fifty-six thousand, twenty".