2021229568459 has 2 divisors, whose sum is σ = 2021229568460. Its totient is φ = 2021229568458.

The previous prime is 2021229568411. The next prime is 2021229568517. The reversal of 2021229568459 is 9548659221202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021229568459 - 2¹⁵ = 2021229535691 is a prime.

It is a super-3 number, since 3×2021229568459³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2021229568409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010614784229 + 1010614784230.

It is an arithmetic number, because the mean of its divisors is an integer number (1010614784230).

Almost surely, 2^{2021229568459} is an apocalyptic number.

2021229568459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021229568459 is an equidigital number, since it uses as much as digits as its factorization.

2021229568459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 2021229568459 in words is "two trillion, twenty-one billion, two hundred twenty-nine million, five hundred sixty-eight thousand, four hundred fifty-nine".