12020020205 has 8 divisors (see below), whose sum is σ = 14442356832. Its totient is φ = 9603794448.

The previous prime is 12020020183. The next prime is 12020020211. The reversal of 12020020205 is 50202002021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020020205 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12020020205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523387 + ... + 1531256.

It is an arithmetic number, because the mean of its divisors is an integer number (1805294604).

Almost surely, 2^12020020205 is an apocalyptic number.

It is an amenable number.

12020020205 is a deficient number, since it is larger than the sum of its proper divisors (2422336627).

12020020205 is an equidigital number, since it uses as much as digits as its factorization.

12020020205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055435.

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

Adding to 12020020205 its reverse (50202002021), we get a palindrome (62222022226).

The spelling of 12020020205 in words is "twelve billion, twenty million, twenty thousand, two hundred five".