12222221200111 has 4 divisors (see below), whose sum is σ = 13162392061672. Its totient is φ = 11282050338552.

The previous prime is 12222221200103. The next prime is 12222221200153. The reversal of 12222221200111 is 11100212222221.

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 12222221200111 - 2³ = 12222221200103 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 (12222221201111) 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, 470085430761 + ... + 470085430786.

It is an arithmetic number, because the mean of its divisors is an integer number (3290598015418).

Almost surely, 2^{12222221200111} is an apocalyptic number.

12222221200111 is a deficient number, since it is larger than the sum of its proper divisors (940170861561).

12222221200111 is an equidigital number, since it uses as much as digits as its factorization.

12222221200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940170861560.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12222221200111 its reverse (11100212222221), we get a palindrome (23322433422332).

The spelling of 12222221200111 in words is "twelve trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred thousand, one hundred eleven".