200012021 has 8 divisors (see below), whose sum is σ = 231030144. Its totient is φ = 171133120.

The previous prime is 200012009. The next prime is 200012027. The reversal of 200012021 is 120210002.

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

It is a cyclic number.

It is not a de Polignac number, because 200012021 - 2¹⁸ = 199749877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200012027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534605 + ... + 534978.

It is an arithmetic number, because the mean of its divisors is an integer number (28878768).

Almost surely, 2^200012021 is an apocalyptic number.

It is an amenable number.

200012021 is a deficient number, since it is larger than the sum of its proper divisors (31018123).

200012021 is a wasteful number, since it uses less digits than its factorization.

200012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069611.

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

The square root of 200012021 is about 14142.5606238757. The cubic root of 200012021 is about 584.8152639469.

Adding to 200012021 its reverse (120210002), we get a palindrome (320222023).

It can be divided in two parts, 20001 and 2021, that added together give a palindrome (22022).

The spelling of 200012021 in words is "two hundred million, twelve thousand, twenty-one".