12020005220 has 48 divisors (see below), whose sum is σ = 25573399488. Its totient is φ = 4745005440.

The previous prime is 12020005211. The next prime is 12020005247. The reversal of 12020005220 is 2250002021.

12020005220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12020005195 and 12020005204.

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 15 ways as a sum of consecutive naturals, for example, 1807742 + ... + 1814378.

It is an arithmetic number, because the mean of its divisors is an integer number (532779156).

Almost surely, 2^12020005220 is an apocalyptic number.

12020005220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020005220 is an abundant number, since it is smaller than the sum of its proper divisors (13553394268).

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

12020005220 is a wasteful number, since it uses less digits than its factorization.

12020005220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820 (or 7818 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

Adding to 12020005220 its reverse (2250002021), we get a palindrome (14270007241).

The spelling of 12020005220 in words is "twelve billion, twenty million, five thousand, two hundred twenty".