12020500012 has 48 divisors (see below), whose sum is σ = 22721247360. Its totient is φ = 5543995392.

The previous prime is 12020500003. The next prime is 12020500013. The reversal of 12020500012 is 21000502021.

It is a junction number, because it is equal to n+sod(n) for n = 12020499965 and 12020500001.

It is not an unprimeable number, because it can be changed into a prime (12020500013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727798 + ... + 744130.

It is an arithmetic number, because the mean of its divisors is an integer number (473359320).

Almost surely, 2^12020500012 is an apocalyptic number.

It is an amenable number.

12020500012 is a deficient number, since it is larger than the sum of its proper divisors (10700747348).

12020500012 is a wasteful number, since it uses less digits than its factorization.

12020500012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16570 (or 16568 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The spelling of 12020500012 in words is "twelve billion, twenty million, five hundred thousand, twelve".