2021122011239 has 2 divisors, whose sum is σ = 2021122011240. Its totient is φ = 2021122011238.

The previous prime is 2021122011217. The next prime is 2021122011247. The reversal of 2021122011239 is 9321102211202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021122011239 - 2⁸ = 2021122010983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021122014239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010561005619 + 1010561005620.

It is an arithmetic number, because the mean of its divisors is an integer number (1010561005620).

Almost surely, 2^{2021122011239} is an apocalyptic number.

2021122011239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021122011239 is an equidigital number, since it uses as much as digits as its factorization.

2021122011239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 2021122011239 in words is "two trillion, twenty-one billion, one hundred twenty-two million, eleven thousand, two hundred thirty-nine".