12222111200111 has 4 divisors (see below), whose sum is σ = 12222664033800. Its totient is φ = 12221558366424.

The previous prime is 12222111200077. The next prime is 12222111200113. The reversal of 12222111200111 is 11100211122221.

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 12222111200111 - 2²⁶ = 12222044091247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12222111200111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222111200113) 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, 276383681 + ... + 276427898.

It is an arithmetic number, because the mean of its divisors is an integer number (3055666008450).

Almost surely, 2^{12222111200111} is an apocalyptic number.

12222111200111 is a deficient number, since it is larger than the sum of its proper divisors (552833689).

12222111200111 is an equidigital number, since it uses as much as digits as its factorization.

12222111200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552833688.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12222111200111 its reverse (11100211122221), we get a palindrome (23322322322332).

The spelling of 12222111200111 in words is "twelve trillion, two hundred twenty-two billion, one hundred eleven million, two hundred thousand, one hundred eleven".