12020718078820 has 96 divisors (see below), whose sum is σ = 29252035927296. Its totient is φ = 4100813721600.

The previous prime is 12020718078797. The next prime is 12020718078821. The reversal of 12020718078820 is 2887081702021.

12020718078820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12020718078821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4004217 + ... + 6330496.

It is an arithmetic number, because the mean of its divisors is an integer number (304708707576).

Almost surely, 2^{12020718078820} is an apocalyptic number.

12020718078820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020718078820 is an abundant number, since it is smaller than the sum of its proper divisors (17231317848476).

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

12020718078820 is a wasteful number, since it uses less digits than its factorization.

12020718078820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10335061 (or 10335059 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 46.

The spelling of 12020718078820 in words is "twelve trillion, twenty billion, seven hundred eighteen million, seventy-eight thousand, eight hundred twenty".