200421106 has 8 divisors (see below), whose sum is σ = 301438764. Its totient is φ = 99941520.

The previous prime is 200421071. The next prime is 200421127. The reversal of 200421106 is 601124002.

It can be written as a sum of positive squares in 2 ways, for example, as 199063881 + 1357225 = 14109^2 + 1165^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 200421106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133585 + ... + 135076.

Almost surely, 2^200421106 is an apocalyptic number.

200421106 is a deficient number, since it is larger than the sum of its proper divisors (101017658).

200421106 is a wasteful number, since it uses less digits than its factorization.

200421106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269036.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 200421106 is about 14157.0161404160. The cubic root of 200421106 is about 585.2137003854.

Adding to 200421106 its reverse (601124002), we get a palindrome (801545108).

The spelling of 200421106 in words is "two hundred million, four hundred twenty-one thousand, one hundred six".