21011022119959 has 2 divisors, whose sum is σ = 21011022119960. Its totient is φ = 21011022119958.

The previous prime is 21011022119947. The next prime is 21011022120017. The reversal of 21011022119959 is 95991122011012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21011022119959 - 2¹⁵ = 21011022087191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21011022119929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505511059979 + 10505511059980.

It is an arithmetic number, because the mean of its divisors is an integer number (10505511059980).

Almost surely, 2^{21011022119959} is an apocalyptic number.

21011022119959 is a deficient number, since it is larger than the sum of its proper divisors (1).

21011022119959 is an equidigital number, since it uses as much as digits as its factorization.

21011022119959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 43.

The spelling of 21011022119959 in words is "twenty-one trillion, eleven billion, twenty-two million, one hundred nineteen thousand, nine hundred fifty-nine".