201200101001111 has 4 divisors (see below), whose sum is σ = 201278972074224. Its totient is φ = 201121229928000.

The previous prime is 201200101001099. The next prime is 201200101001117. The reversal of 201200101001111 is 111100101002102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201200101001111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201200101001092 and 201200101001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200101001117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39435532730 + ... + 39435537831.

It is an arithmetic number, because the mean of its divisors is an integer number (50319743018556).

Almost surely, 2^{201200101001111} is an apocalyptic number.

201200101001111 is a deficient number, since it is larger than the sum of its proper divisors (78871073113).

201200101001111 is an equidigital number, since it uses as much as digits as its factorization.

201200101001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78871073112.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201200101001111 its reverse (111100101002102), we get a palindrome (312300202003213).

Subtracting from 201200101001111 its reverse (111100101002102), we obtain a palindrome (90099999999009).

The spelling of 201200101001111 in words is "two hundred one trillion, two hundred billion, one hundred one million, one thousand, one hundred eleven".