12111213232201 has 4 divisors (see below), whose sum is σ = 12748645507600. Its totient is φ = 11473780956804.

The previous prime is 12111213232187. The next prime is 12111213232259. The reversal of 12111213232201 is 10223231211121.

It is a happy number.

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 12111213232201 - 2¹³ = 12111213224009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111216232201) 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, 318716137671 + ... + 318716137708.

It is an arithmetic number, because the mean of its divisors is an integer number (3187161376900).

Almost surely, 2^{12111213232201} is an apocalyptic number.

It is an amenable number.

12111213232201 is a deficient number, since it is larger than the sum of its proper divisors (637432275399).

12111213232201 is an equidigital number, since it uses as much as digits as its factorization.

12111213232201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637432275398.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12111213232201 its reverse (10223231211121), we get a palindrome (22334444443322).

The spelling of 12111213232201 in words is "twelve trillion, one hundred eleven billion, two hundred thirteen million, two hundred thirty-two thousand, two hundred one".