200002212199921 has 2 divisors, whose sum is σ = 200002212199922. Its totient is φ = 200002212199920.

The previous prime is 200002212199877. The next prime is 200002212200017. The reversal of 200002212199921 is 129991212200002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122435088071521 + 77567124128400 = 11065039^2 + 8807220^2 .

It is a cyclic number.

It is not a de Polignac number, because 200002212199921 - 2¹¹ = 200002212197873 is a prime.

It is not a weakly prime, because it can be changed into another prime (200002212199421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100001106099960 + 100001106099961.

It is an arithmetic number, because the mean of its divisors is an integer number (100001106099961).

Almost surely, 2^{200002212199921} is an apocalyptic number.

It is an amenable number.

200002212199921 is a deficient number, since it is larger than the sum of its proper divisors (1).

200002212199921 is an equidigital number, since it uses as much as digits as its factorization.

200002212199921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

Adding to 200002212199921 its reverse (129991212200002), we get a palindrome (329993424399923).

The spelling of 200002212199921 in words is "two hundred trillion, two billion, two hundred twelve million, one hundred ninety-nine thousand, nine hundred twenty-one".