12036366739921 has 2 divisors, whose sum is σ = 12036366739922. Its totient is φ = 12036366739920.

The previous prime is 12036366739907. The next prime is 12036366740051. The reversal of 12036366739921 is 12993766363021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12032323687696 + 4043052225 = 3468764^2 + 63585^2 .

It is a cyclic number.

It is not a de Polignac number, because 12036366739921 - 2⁴¹ = 9837343484369 is a prime.

It is not a weakly prime, because it can be changed into another prime (12036366734921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6018183369960 + 6018183369961.

It is an arithmetic number, because the mean of its divisors is an integer number (6018183369961).

Almost surely, 2^{12036366739921} is an apocalyptic number.

It is an amenable number.

12036366739921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12036366739921 is an equidigital number, since it uses as much as digits as its factorization.

12036366739921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13226976, while the sum is 58.

The spelling of 12036366739921 in words is "twelve trillion, thirty-six billion, three hundred sixty-six million, seven hundred thirty-nine thousand, nine hundred twenty-one".