12203111111111 has 4 divisors (see below), whose sum is σ = 12385247097912. Its totient is φ = 12020975124312.

The previous prime is 12203111111101. The next prime is 12203111111119. The reversal of 12203111111111 is 11111111130221.

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 12203111111111 - 2¹⁰ = 12203111110087 is a prime.

It is a Duffinian number.

12203111111111 is a modest number, since divided by 11111111 gives 122031 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12203111111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203111111119) 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, 91067993300 + ... + 91067993433.

It is an arithmetic number, because the mean of its divisors is an integer number (3096311774478).

Almost surely, 2^{12203111111111} is an apocalyptic number.

12203111111111 is a deficient number, since it is larger than the sum of its proper divisors (182135986801).

12203111111111 is an equidigital number, since it uses as much as digits as its factorization.

12203111111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182135986800.

The product of its (nonzero) digits is 12, while the sum is 17.

Adding to 12203111111111 its reverse (11111111130221), we get a palindrome (23314222241332).

The spelling of 12203111111111 in words is "twelve trillion, two hundred three billion, one hundred eleven million, one hundred eleven thousand, one hundred eleven".