12010321111211 has 4 divisors (see below), whose sum is σ = 12236930943552. Its totient is φ = 11783711278872.

The previous prime is 12010321111181. The next prime is 12010321111237. The reversal of 12010321111211 is 11211112301021.

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 12010321111211 - 2²² = 12010316916907 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 12010321111211.

It is not an unprimeable number, because it can be changed into a prime (12010321113211) 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, 113304916091 + ... + 113304916196.

It is an arithmetic number, because the mean of its divisors is an integer number (3059232735888).

Almost surely, 2^{12010321111211} is an apocalyptic number.

12010321111211 is a deficient number, since it is larger than the sum of its proper divisors (226609832341).

12010321111211 is an equidigital number, since it uses as much as digits as its factorization.

12010321111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226609832340.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 12010321111211 its reverse (11211112301021), we get a palindrome (23221433412232).

The spelling of 12010321111211 in words is "twelve trillion, ten billion, three hundred twenty-one million, one hundred eleven thousand, two hundred eleven".