12021320213 has 8 divisors (see below), whose sum is σ = 14181834240. Its totient is φ = 9971601840.

The previous prime is 12021320173. The next prime is 12021320243. The reversal of 12021320213 is 31202312021.

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 12021320213 - 2¹⁴ = 12021303829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12021320191 and 12021320200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021320243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27698678 + ... + 27699111.

It is an arithmetic number, because the mean of its divisors is an integer number (1772729280).

Almost surely, 2^12021320213 is an apocalyptic number.

It is an amenable number.

12021320213 is a deficient number, since it is larger than the sum of its proper divisors (2160514027).

12021320213 is an equidigital number, since it uses as much as digits as its factorization.

12021320213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55397827.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12021320213 its reverse (31202312021), we get a palindrome (43223632234).

The spelling of 12021320213 in words is "twelve billion, twenty-one million, three hundred twenty thousand, two hundred thirteen".