200218221 has 24 divisors (see below), whose sum is σ = 331915584. Its totient is φ = 113927040.

The previous prime is 200218189. The next prime is 200218237. The reversal of 200218221 is 122812002.

It is a happy number.

It is not a de Polignac number, because 200218221 - 2⁵ = 200218189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200218194 and 200218203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200218021) 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, 8590 + ... + 21776.

It is an arithmetic number, because the mean of its divisors is an integer number (13829816).

Almost surely, 2^200218221 is an apocalyptic number.

200218221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200218221 is a deficient number, since it is larger than the sum of its proper divisors (131697363).

200218221 is a wasteful number, since it uses less digits than its factorization.

200218221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13441 (or 13438 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 200218221 is about 14149.8487977787. The cubic root of 200218221 is about 585.0161643572.

The spelling of 200218221 in words is "two hundred million, two hundred eighteen thousand, two hundred twenty-one".