200121301 has 4 divisors (see below), whose sum is σ = 200149600. Its totient is φ = 200093004.

The previous prime is 200121247. The next prime is 200121329. The reversal of 200121301 is 103121002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200121301 is a prime.

It is a super-2 number, since 2×200121301² = 80097070227865202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121391) 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 3 ways as a sum of consecutive naturals, for example, 6670 + ... + 21088.

It is an arithmetic number, because the mean of its divisors is an integer number (50037400).

Almost surely, 2^200121301 is an apocalyptic number.

It is an amenable number.

200121301 is a deficient number, since it is larger than the sum of its proper divisors (28299).

200121301 is a wasteful number, since it uses less digits than its factorization.

200121301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28298.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 200121301 is about 14146.4236116412. The cubic root of 200121301 is about 584.9217525071.

Adding to 200121301 its reverse (103121002), we get a palindrome (303242303).

The spelling of 200121301 in words is "two hundred million, one hundred twenty-one thousand, three hundred one".