12021103021213 has 64 divisors (see below), whose sum is σ = 14634148919040. Its totient is φ = 9808364079360.

The previous prime is 12021103021177. The next prime is 12021103021253. The reversal of 12021103021213 is 31212030112021.

It is not a de Polignac number, because 12021103021213 - 2⁹ = 12021103020701 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 (12021103021253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1094115106 + ... + 1094126092.

It is an arithmetic number, because the mean of its divisors is an integer number (228658576860).

Almost surely, 2^{12021103021213} is an apocalyptic number.

12021103021213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12021103021213 is a deficient number, since it is larger than the sum of its proper divisors (2613045897827).

12021103021213 is a wasteful number, since it uses less digits than its factorization.

12021103021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12779 (or 12757 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12021103021213 its reverse (31212030112021), we get a palindrome (43233133133234).

The spelling of 12021103021213 in words is "twelve trillion, twenty-one billion, one hundred three million, twenty-one thousand, two hundred thirteen".