200222200021 has 2 divisors, whose sum is σ = 200222200022. Its totient is φ = 200222200020.

The previous prime is 200222200001. The next prime is 200222200037. The reversal of 200222200021 is 120002222002.

200222200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141639322500 + 58582877521 = 376350^2 + 242039^2 .

It is a cyclic number.

It is not a de Polignac number, because 200222200021 - 2⁷ = 200222199893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200222199974 and 200222200010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200222200001) 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, 100111100010 + 100111100011.

It is an arithmetic number, because the mean of its divisors is an integer number (100111100011).

Almost surely, 2^200222200021 is an apocalyptic number.

It is an amenable number.

200222200021 is a deficient number, since it is larger than the sum of its proper divisors (1).

200222200021 is an equidigital number, since it uses as much as digits as its factorization.

200222200021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 200222200021 its reverse (120002222002), we get a palindrome (320224422023).

The spelling of 200222200021 in words is "two hundred billion, two hundred twenty-two million, two hundred thousand, twenty-one".