200221400 has 24 divisors (see below), whose sum is σ = 465515220. Its totient is φ = 80088480.

The previous prime is 200221387. The next prime is 200221403. The reversal of 200221400 is 4122002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500354 + ... + 500753.

Almost surely, 2^200221400 is an apocalyptic number.

200221400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200221400 is an abundant number, since it is smaller than the sum of its proper divisors (265293820).

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

200221400 is a wasteful number, since it uses less digits than its factorization.

200221400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001123 (or 1001114 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 200221400 is about 14149.9611306887. The cubic root of 200221400 is about 585.0192605732.

Adding to 200221400 its reverse (4122002), we get a palindrome (204343402).

The spelling of 200221400 in words is "two hundred million, two hundred twenty-one thousand, four hundred".