12012202022111 has 4 divisors (see below), whose sum is σ = 12050826466224. Its totient is φ = 11973577578000.

The previous prime is 12012202022057. The next prime is 12012202022113. The reversal of 12012202022111 is 11122020221021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012202022111 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 12012202022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012202022113) 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, 19312221590 + ... + 19312222211.

It is an arithmetic number, because the mean of its divisors is an integer number (3012706616556).

Almost surely, 2^{12012202022111} is an apocalyptic number.

12012202022111 is a deficient number, since it is larger than the sum of its proper divisors (38624444113).

12012202022111 is an equidigital number, since it uses as much as digits as its factorization.

12012202022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38624444112.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12012202022111 its reverse (11122020221021), we get a palindrome (23134222243132).

The spelling of 12012202022111 in words is "twelve trillion, twelve billion, two hundred two million, twenty-two thousand, one hundred eleven".