200011121 has 4 divisors (see below), whose sum is σ = 203401200. Its totient is φ = 196621044.

The previous prime is 200011117. The next prime is 200011129. The reversal of 200011121 is 121110002.

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.

It is a cyclic number.

It is not a de Polignac number, because 200011121 - 2² = 200011117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200011099 and 200011108.

It is not an unprimeable number, because it can be changed into a prime (200011129) 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, 1694951 + ... + 1695068.

It is an arithmetic number, because the mean of its divisors is an integer number (50850300).

Almost surely, 2^200011121 is an apocalyptic number.

It is an amenable number.

200011121 is a deficient number, since it is larger than the sum of its proper divisors (3390079).

200011121 is an equidigital number, since it uses as much as digits as its factorization.

200011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390078.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 200011121 is about 14142.5288049910. The cubic root of 200011121 is about 584.8143867754.

Adding to 200011121 its reverse (121110002), we get a palindrome (321121123).

The spelling of 200011121 in words is "two hundred million, eleven thousand, one hundred twenty-one".