201200111 has 4 divisors (see below), whose sum is σ = 229942992. Its totient is φ = 172457232.

The previous prime is 201200081. The next prime is 201200183. The reversal of 201200111 is 111002102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201200111 - 2⁶ = 201200047 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 (201200611) 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, 14371430 + ... + 14371443.

It is an arithmetic number, because the mean of its divisors is an integer number (57485748).

Almost surely, 2^201200111 is an apocalyptic number.

201200111 is a deficient number, since it is larger than the sum of its proper divisors (28742881).

201200111 is an equidigital number, since it uses as much as digits as its factorization.

201200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28742880.

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

The square root of 201200111 is about 14184.5024939192. The cubic root of 201200111 is about 585.9709310480.

Adding to 201200111 its reverse (111002102), we get a palindrome (312202213).

The spelling of 201200111 in words is "two hundred one million, two hundred thousand, one hundred eleven".