200010021 has 8 divisors (see below), whose sum is σ = 267063264. Its totient is φ = 133148400.

The previous prime is 200010011. The next prime is 200010037. The reversal of 200010021 is 120010002.

It is a happy number.

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

It is not a de Polignac number, because 200010021 - 2⁵ = 200009989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200009991 and 200010009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200010011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45451 + ... + 49656.

It is an arithmetic number, because the mean of its divisors is an integer number (33382908).

Almost surely, 2^200010021 is an apocalyptic number.

It is an amenable number.

200010021 is a deficient number, since it is larger than the sum of its proper divisors (67053243).

200010021 is an equidigital number, since it uses as much as digits as its factorization.

200010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95811.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 200010021 is about 14142.4899151458. The cubic root of 200010021 is about 584.8133146734.

Adding to 200010021 its reverse (120010002), we get a palindrome (320020023).

It can be divided in two parts, 2000 and 10021, that added together give a palindrome (12021).

The spelling of 200010021 in words is "two hundred million, ten thousand, twenty-one".