12211210020013 has 4 divisors (see below), whose sum is σ = 12211422103548. Its totient is φ = 12210997936480.

The previous prime is 12211210019951. The next prime is 12211210020043. The reversal of 12211210020013 is 31002001211221.

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 8388101873284 + 3823108146729 = 2896222^2 + 1955277^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211210020013 - 2²¹ = 12211207922861 is a prime.

It is a super-2 number, since 2×12211210020013² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211210020043) 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, 105955378 + ... + 106070563.

It is an arithmetic number, because the mean of its divisors is an integer number (3052855525887).

Almost surely, 2^{12211210020013} is an apocalyptic number.

It is an amenable number.

12211210020013 is a deficient number, since it is larger than the sum of its proper divisors (212083535).

12211210020013 is an equidigital number, since it uses as much as digits as its factorization.

12211210020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212083534.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12211210020013 its reverse (31002001211221), we get a palindrome (43213211231234).

The spelling of 12211210020013 in words is "twelve trillion, two hundred eleven billion, two hundred ten million, twenty thousand, thirteen".