12021131032213 has 2 divisors, whose sum is σ = 12021131032214. Its totient is φ = 12021131032212.

The previous prime is 12021131032187. The next prime is 12021131032231. The reversal of 12021131032213 is 31223013112021.

Together with next prime (12021131032231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11954949353649 + 66181678564 = 3457593^2 + 257258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021131032213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021131032283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010565516106 + 6010565516107.

It is an arithmetic number, because the mean of its divisors is an integer number (6010565516107).

Almost surely, 2^{12021131032213} is an apocalyptic number.

It is an amenable number.

12021131032213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021131032213 is an equidigital number, since it uses as much as digits as its factorization.

12021131032213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12021131032213 its reverse (31223013112021), we get a palindrome (43244144144234).

The spelling of 12021131032213 in words is "twelve trillion, twenty-one billion, one hundred thirty-one million, thirty-two thousand, two hundred thirteen".