21020022022019 has 2 divisors, whose sum is σ = 21020022022020. Its totient is φ = 21020022022018.

The previous prime is 21020022022009. The next prime is 21020022022039. The reversal of 21020022022019 is 91022022002012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21020022022019 - 2⁴ = 21020022022003 is a prime.

It is a super-2 number, since 2×21020022022019² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21020022021985 and 21020022022003.

It is not a weakly prime, because it can be changed into another prime (21020022022009) 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, 10510011011009 + 10510011011010.

It is an arithmetic number, because the mean of its divisors is an integer number (10510011011010).

Almost surely, 2^{21020022022019} is an apocalyptic number.

21020022022019 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020022022019 is an equidigital number, since it uses as much as digits as its factorization.

21020022022019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 21020022022019 in words is "twenty-one trillion, twenty billion, twenty-two million, twenty-two thousand, nineteen".