200021220073 has 2 divisors, whose sum is σ = 200021220074. Its totient is φ = 200021220072.

The previous prime is 200021220031. The next prime is 200021220149. The reversal of 200021220073 is 370022120002.

200021220073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189527881104 + 10493338969 = 435348^2 + 102437^2 .

It is a cyclic number.

It is not a de Polignac number, because 200021220073 - 2¹³ = 200021211881 is a prime.

It is a super-3 number, since 3×200021220073³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200021220073.

It is not a weakly prime, because it can be changed into another prime (200021220013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010610036 + 100010610037.

It is an arithmetic number, because the mean of its divisors is an integer number (100010610037).

Almost surely, 2^200021220073 is an apocalyptic number.

It is an amenable number.

200021220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021220073 is an equidigital number, since it uses as much as digits as its factorization.

200021220073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

Adding to 200021220073 its reverse (370022120002), we get a palindrome (570043340075).

The spelling of 200021220073 in words is "two hundred billion, twenty-one million, two hundred twenty thousand, seventy-three".