200230021 has 8 divisors (see below), whose sum is σ = 204464664. Its totient is φ = 196035840.

The previous prime is 200230013. The next prime is 200230039. The reversal of 200230021 is 120032002.

It can be written as a sum of positive squares in 4 ways, for example, as 6630625 + 193599396 = 2575^2 + 13914^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200230021 - 2³ = 200230013 is a prime.

It is a super-2 number, since 2×200230021² = 80184122619320882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200230001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10 + ... + 20011.

It is an arithmetic number, because the mean of its divisors is an integer number (25558083).

Almost surely, 2^200230021 is an apocalyptic number.

It is an amenable number.

200230021 is a deficient number, since it is larger than the sum of its proper divisors (4234643).

200230021 is a wasteful number, since it uses less digits than its factorization.

200230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20231.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 200230021 is about 14150.2657572217. The cubic root of 200230021 is about 585.0276569095.

Adding to 200230021 its reverse (120032002), we get a palindrome (320262023).

It can be divided in two parts, 2002 and 30021, that added together give a palindrome (32023).

The spelling of 200230021 in words is "two hundred million, two hundred thirty thousand, twenty-one".