20000220210205 has 8 divisors (see below), whose sum is σ = 24000929351352. Its totient is φ = 15999732768768.

The previous prime is 20000220210203. The next prime is 20000220210241. The reversal of 20000220210205 is 50201202200002.

It can be written as a sum of positive squares in 4 ways, for example, as 546598498329 + 19453621711876 = 739323^2 + 4410626^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20000220210205 - 2¹ = 20000220210203 is a prime.

It is a super-2 number, since 2×20000220210205² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000220210203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55226392 + ... + 55587361.

It is an arithmetic number, because the mean of its divisors is an integer number (3000116168919).

Almost surely, 2^{20000220210205} is an apocalyptic number.

It is an amenable number.

20000220210205 is a deficient number, since it is larger than the sum of its proper divisors (4000709141147).

20000220210205 is a wasteful number, since it uses less digits than its factorization.

20000220210205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110849855.

The product of its (nonzero) digits is 160, while the sum is 16.

Adding to 20000220210205 its reverse (50201202200002), we get a palindrome (70201422410207).

The spelling of 20000220210205 in words is "twenty trillion, two hundred twenty million, two hundred ten thousand, two hundred five".