200144221 has 2 divisors, whose sum is σ = 200144222. Its totient is φ = 200144220.

The previous prime is 200144207. The next prime is 200144227. The reversal of 200144221 is 122441002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195692121 + 4452100 = 13989^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 200144221 - 2⁹ = 200143709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200144195 and 200144204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200144227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100072110 + 100072111.

It is an arithmetic number, because the mean of its divisors is an integer number (100072111).

Almost surely, 2^200144221 is an apocalyptic number.

It is an amenable number.

200144221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200144221 is an equidigital number, since it uses as much as digits as its factorization.

200144221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 200144221 is about 14147.2336871913. The cubic root of 200144221 is about 584.9440821220.

Adding to 200144221 its reverse (122441002), we get a palindrome (322585223).

The spelling of 200144221 in words is "two hundred million, one hundred forty-four thousand, two hundred twenty-one".