12550201111 has 4 divisors (see below), whose sum is σ = 14343086992. Its totient is φ = 10757315232.

The previous prime is 12550201109. The next prime is 12550201123. The reversal of 12550201111 is 11110205521.

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 12550201111 - 2¹ = 12550201109 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 (12550601111) 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, 896442930 + ... + 896442943.

It is an arithmetic number, because the mean of its divisors is an integer number (3585771748).

Almost surely, 2^12550201111 is an apocalyptic number.

12550201111 is a deficient number, since it is larger than the sum of its proper divisors (1792885881).

12550201111 is an equidigital number, since it uses as much as digits as its factorization.

12550201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792885880.

The product of its (nonzero) digits is 100, while the sum is 19.

Adding to 12550201111 its reverse (11110205521), we get a palindrome (23660406632).

The spelling of 12550201111 in words is "twelve billion, five hundred fifty million, two hundred one thousand, one hundred eleven".