200010221 has 4 divisors (see below), whose sum is σ = 201334944. Its totient is φ = 198685500.

The previous prime is 200010211. The next prime is 200010227. The reversal of 200010221 is 122010002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122010002 = 2 ⋅61005001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200010221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200010199 and 200010208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200010227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662135 + ... + 662436.

It is an arithmetic number, because the mean of its divisors is an integer number (50333736).

Almost surely, 2^200010221 is an apocalyptic number.

It is an amenable number.

200010221 is a deficient number, since it is larger than the sum of its proper divisors (1324723).

200010221 is a wasteful number, since it uses less digits than its factorization.

200010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324722.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 200010221 is about 14142.4969860347. The cubic root of 200010221 is about 584.8135096013.

Adding to 200010221 its reverse (122010002), we get a palindrome (322020223).

It can be divided in two parts, 2000 and 10221, that added together give a palindrome (12221).

The spelling of 200010221 in words is "two hundred million, ten thousand, two hundred twenty-one".