200221320097 has 2 divisors, whose sum is σ = 200221320098. Its totient is φ = 200221320096.

The previous prime is 200221320077. The next prime is 200221320109. The reversal of 200221320097 is 790023122002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175066091281 + 25155228816 = 418409^2 + 158604^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221320097 - 2³¹ = 198073836449 is a prime.

It is not a weakly prime, because it can be changed into another prime (200221320077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110660048 + 100110660049.

It is an arithmetic number, because the mean of its divisors is an integer number (100110660049).

Almost surely, 2^200221320097 is an apocalyptic number.

It is an amenable number.

200221320097 is a deficient number, since it is larger than the sum of its proper divisors (1).

200221320097 is an equidigital number, since it uses as much as digits as its factorization.

200221320097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 200221320097 its reverse (790023122002), we get a palindrome (990244442099).

The spelling of 200221320097 in words is "two hundred billion, two hundred twenty-one million, three hundred twenty thousand, ninety-seven".