12021223329589 has 2 divisors, whose sum is σ = 12021223329590. Its totient is φ = 12021223329588.

The previous prime is 12021223329559. The next prime is 12021223329617. The reversal of 12021223329589 is 98592332212021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7585523997489 + 4435699332100 = 2754183^2 + 2106110^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021223329589 - 2²³ = 12021214940981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021223329559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010611664794 + 6010611664795.

It is an arithmetic number, because the mean of its divisors is an integer number (6010611664795).

Almost surely, 2^{12021223329589} is an apocalyptic number.

It is an amenable number.

12021223329589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021223329589 is an equidigital number, since it uses as much as digits as its factorization.

12021223329589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 12021223329589 in words is "twelve trillion, twenty-one billion, two hundred twenty-three million, three hundred twenty-nine thousand, five hundred eighty-nine".