2021001001259 has 2 divisors, whose sum is σ = 2021001001260. Its totient is φ = 2021001001258.

The previous prime is 2021001001219. The next prime is 2021001001267. The reversal of 2021001001259 is 9521001001202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021001001259 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021001001219) 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, 1010500500629 + 1010500500630.

It is an arithmetic number, because the mean of its divisors is an integer number (1010500500630).

Almost surely, 2^{2021001001259} is an apocalyptic number.

2021001001259 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021001001259 is an equidigital number, since it uses as much as digits as its factorization.

2021001001259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The spelling of 2021001001259 in words is "two trillion, twenty-one billion, one million, one thousand, two hundred fifty-nine".