200224021 has 8 divisors (see below), whose sum is σ = 204248088. Its totient is φ = 196224000.

The previous prime is 200223997. The next prime is 200224027. The reversal of 200224021 is 120422002.

It can be written as a sum of positive squares in 4 ways, for example, as 6708100 + 193515921 = 2590^2 + 13911^2 .

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 200224021 - 2⁷ = 200223893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200223992 and 200224010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200224027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11301 + ... + 22981.

It is an arithmetic number, because the mean of its divisors is an integer number (25531011).

Almost surely, 2^200224021 is an apocalyptic number.

It is an amenable number.

200224021 is a deficient number, since it is larger than the sum of its proper divisors (4024067).

200224021 is a wasteful number, since it uses less digits than its factorization.

200224021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12023.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 200224021 is about 14150.0537454810. The cubic root of 200224021 is about 585.0218132953.

Adding to 200224021 its reverse (120422002), we get a palindrome (320646023).

The spelling of 200224021 in words is "two hundred million, two hundred twenty-four thousand, twenty-one".