200221100 has 18 divisors (see below), whose sum is σ = 434480004. Its totient is φ = 80088400.

The previous prime is 200221067. The next prime is 200221117. The reversal of 200221100 is 1122002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1001006 + ... + 1001205.

It is an arithmetic number, because the mean of its divisors is an integer number (24137778).

Almost surely, 2^200221100 is an apocalyptic number.

200221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200221100 is an abundant number, since it is smaller than the sum of its proper divisors (234258904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200221100 is a wasteful number, since it uses less digits than its factorization.

200221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002225 (or 2002218 counting only the distinct ones).

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

The square root of 200221100 is about 14149.9505299489. The cubic root of 200221100 is about 585.0189683868.

Adding to 200221100 its reverse (1122002), we get a palindrome (201343102).

The spelling of 200221100 in words is "two hundred million, two hundred twenty-one thousand, one hundred".