12224733900521 has 2 divisors, whose sum is σ = 12224733900522. Its totient is φ = 12224733900520.

The previous prime is 12224733900437. The next prime is 12224733900559. The reversal of 12224733900521 is 12500933742221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7209284070121 + 5015449830400 = 2685011^2 + 2239520^2 .

It is a cyclic number.

It is not a de Polignac number, because 12224733900521 - 2²⁶ = 12224666791657 is a prime.

It is not a weakly prime, because it can be changed into another prime (12224733900121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112366950260 + 6112366950261.

It is an arithmetic number, because the mean of its divisors is an integer number (6112366950261).

Almost surely, 2^{12224733900521} is an apocalyptic number.

It is an amenable number.

12224733900521 is a deficient number, since it is larger than the sum of its proper divisors (1).

12224733900521 is an equidigital number, since it uses as much as digits as its factorization.

12224733900521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 12224733900521 in words is "twelve trillion, two hundred twenty-four billion, seven hundred thirty-three million, nine hundred thousand, five hundred twenty-one".