12012100021013 has 8 divisors (see below), whose sum is σ = 12305727424536. Its totient is φ = 11718503539200.

The previous prime is 12012100020941. The next prime is 12012100021093. The reversal of 12012100021013 is 31012000121021.

It can be written as a sum of positive squares in 4 ways, for example, as 1514098257169 + 10498001763844 = 1230487^2 + 3240062^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12012100021013 - 2²⁶ = 12012032912149 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 (12012100021093) 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 7 ways as a sum of consecutive naturals, for example, 6943028 + ... + 8498813.

It is an arithmetic number, because the mean of its divisors is an integer number (1538215928067).

Almost surely, 2^{12012100021013} is an apocalyptic number.

It is an amenable number.

12012100021013 is a deficient number, since it is larger than the sum of its proper divisors (293627403523).

12012100021013 is a wasteful number, since it uses less digits than its factorization.

12012100021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15460855.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12012100021013 its reverse (31012000121021), we get a palindrome (43024100142034).

The spelling of 12012100021013 in words is "twelve trillion, twelve billion, one hundred million, twenty-one thousand, thirteen".