200023221 has 24 divisors (see below), whose sum is σ = 277167744. Its totient is φ = 128298240.

The previous prime is 200023199. The next prime is 200023231. The reversal of 200023221 is 122320002.

It is not a de Polignac number, because 200023221 - 2¹⁴ = 200006837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200023197 and 200023206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200023231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 463876 + ... + 464306.

It is an arithmetic number, because the mean of its divisors is an integer number (11548656).

Almost surely, 2^200023221 is an apocalyptic number.

It is an amenable number.

200023221 is a deficient number, since it is larger than the sum of its proper divisors (77144523).

200023221 is a wasteful number, since it uses less digits than its factorization.

200023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 200023221 is about 14142.9565862305. The cubic root of 200023221 is about 584.8261796387.

Adding to 200023221 its reverse (122320002), we get a palindrome (322343223).

The spelling of 200023221 in words is "two hundred million, twenty-three thousand, two hundred twenty-one".