12012221311313 has 4 divisors (see below), whose sum is σ = 12305202318948. Its totient is φ = 11719240303680.

The previous prime is 12012221311253. The next prime is 12012221311357. The reversal of 12012221311313 is 31311312221021.

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 6470679325009 + 5541541986304 = 2543753^2 + 2354048^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012221311313 - 2¹⁶ = 12012221245777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012221311393) 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, 146490503756 + ... + 146490503837.

It is an arithmetic number, because the mean of its divisors is an integer number (3076300579737).

Almost surely, 2^{12012221311313} is an apocalyptic number.

It is an amenable number.

12012221311313 is a deficient number, since it is larger than the sum of its proper divisors (292981007635).

12012221311313 is an equidigital number, since it uses as much as digits as its factorization.

12012221311313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292981007634.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12012221311313 its reverse (31311312221021), we get a palindrome (43323533532334).

The spelling of 12012221311313 in words is "twelve trillion, twelve billion, two hundred twenty-one million, three hundred eleven thousand, three hundred thirteen".