200420030221 has 2 divisors, whose sum is σ = 200420030222. Its totient is φ = 200420030220.

The previous prime is 200420030207. The next prime is 200420030227. The reversal of 200420030221 is 122030024002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186636096196 + 13783934025 = 432014^2 + 117405^2 .

It is a cyclic number.

It is not a de Polignac number, because 200420030221 - 2⁵ = 200420030189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200420030195 and 200420030204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200420030227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100210015110 + 100210015111.

It is an arithmetic number, because the mean of its divisors is an integer number (100210015111).

Almost surely, 2^200420030221 is an apocalyptic number.

It is an amenable number.

200420030221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200420030221 is an equidigital number, since it uses as much as digits as its factorization.

200420030221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 200420030221 its reverse (122030024002), we get a palindrome (322450054223).

The spelling of 200420030221 in words is "two hundred billion, four hundred twenty million, thirty thousand, two hundred twenty-one".