200021002101205 has 8 divisors (see below), whose sum is σ = 240025648063032. Its totient is φ = 160016504653248.

The previous prime is 200021002101187. The next prime is 200021002101257. The reversal of 200021002101205 is 502101200120002.

It is a happy number.

200021002101205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30664562769 + 199990337538436 = 175113^2 + 14141794^2 .

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 200021002101205 - 2¹⁹ = 200021001576917 is a prime.

It is a Duffinian number.

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, 34143654 + ... + 39570583.

It is an arithmetic number, because the mean of its divisors is an integer number (30003206007879).

Almost surely, 2^{200021002101205} is an apocalyptic number.

It is an amenable number.

200021002101205 is a deficient number, since it is larger than the sum of its proper divisors (40004645961827).

200021002101205 is an equidigital number, since it uses as much as digits as its factorization.

200021002101205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74256935.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 200021002101205 its reverse (502101200120002), we get a palindrome (702122202221207).

The spelling of 200021002101205 in words is "two hundred trillion, twenty-one billion, two million, one hundred one thousand, two hundred five".