200021223 has 16 divisors (see below), whose sum is σ = 275460480. Its totient is φ = 129005856.

The previous prime is 200021219. The next prime is 200021243. The reversal of 200021223 is 322120002.

It is not a de Polignac number, because 200021223 - 2² = 200021219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200021199 and 200021208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14836 + ... + 24902.

It is an arithmetic number, because the mean of its divisors is an integer number (17216280).

Almost surely, 2^200021223 is an apocalyptic number.

200021223 is a deficient number, since it is larger than the sum of its proper divisors (75439257).

200021223 is a wasteful number, since it uses less digits than its factorization.

200021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10286.

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

The square root of 200021223 is about 14142.8859501871. The cubic root of 200021223 is about 584.8242323871.

Adding to 200021223 its reverse (322120002), we get a palindrome (522141225).

The spelling of 200021223 in words is "two hundred million, twenty-one thousand, two hundred twenty-three".