12211303021013 has 4 divisors (see below), whose sum is σ = 12246292428300. Its totient is φ = 12176313613728.

The previous prime is 12211303020991. The next prime is 12211303021033. The reversal of 12211303021013 is 31012030311221.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8774350395409 + 3436952625604 = 2962153^2 + 1853902^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211303021013 - 2⁸ = 12211303020757 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 (12211303021033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17494703120 + ... + 17494703817.

It is an arithmetic number, because the mean of its divisors is an integer number (3061573107075).

Almost surely, 2^{12211303021013} is an apocalyptic number.

It is an amenable number.

12211303021013 is a deficient number, since it is larger than the sum of its proper divisors (34989407287).

12211303021013 is an equidigital number, since it uses as much as digits as its factorization.

12211303021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34989407286.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12211303021013 its reverse (31012030311221), we get a palindrome (43223333332234).

The spelling of 12211303021013 in words is "twelve trillion, two hundred eleven billion, three hundred three million, twenty-one thousand, thirteen".