221000000200201 has 2 divisors, whose sum is σ = 221000000200202. Its totient is φ = 221000000200200.

The previous prime is 221000000200139. The next prime is 221000000200229. The reversal of 221000000200201 is 102002000000122.

221000000200201 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., 155728935139600 + 65271065060601 = 12479140^2 + 8079051^2 .

It is a cyclic number.

It is not a de Polignac number, because 221000000200201 - 2⁴³ = 212203907177993 is a prime.

It is not a weakly prime, because it can be changed into another prime (221000000204201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110500000100100 + 110500000100101.

It is an arithmetic number, because the mean of its divisors is an integer number (110500000100101).

Almost surely, 2^{221000000200201} is an apocalyptic number.

It is an amenable number.

221000000200201 is a deficient number, since it is larger than the sum of its proper divisors (1).

221000000200201 is an equidigital number, since it uses as much as digits as its factorization.

221000000200201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 221000000200201 its reverse (102002000000122), we get a palindrome (323002000200323).

The spelling of 221000000200201 in words is "two hundred twenty-one trillion, two hundred thousand, two hundred one".