12020011012 has 24 divisors (see below), whose sum is σ = 21213029376. Its totient is φ = 5959201248.

The previous prime is 12020011009. The next prime is 12020011013. The reversal of 12020011012 is 21011002021.

It is a self number, because there is not a number n which added to its sum of digits gives 12020011012.

It is not an unprimeable number, because it can be changed into a prime (12020011013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011618 + ... + 1023430.

It is an arithmetic number, because the mean of its divisors is an integer number (883876224).

Almost surely, 2^12020011012 is an apocalyptic number.

It is an amenable number.

12020011012 is a deficient number, since it is larger than the sum of its proper divisors (9193018364).

12020011012 is a wasteful number, since it uses less digits than its factorization.

12020011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13947 (or 13945 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12020011012 its reverse (21011002021), we get a palindrome (33031013033).

The spelling of 12020011012 in words is "twelve billion, twenty million, eleven thousand, twelve".