21822863556163 has 2 divisors, whose sum is σ = 21822863556164. Its totient is φ = 21822863556162.

The previous prime is 21822863556133. The next prime is 21822863556227. The reversal of 21822863556163 is 36165536822812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21822863556163 - 2⁹ = 21822863555651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21822863556098 and 21822863556107.

It is not a weakly prime, because it can be changed into another prime (21822863556133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10911431778081 + 10911431778082.

It is an arithmetic number, because the mean of its divisors is an integer number (10911431778082).

Almost surely, 2^{21822863556163} is an apocalyptic number.

21822863556163 is a deficient number, since it is larger than the sum of its proper divisors (1).

21822863556163 is an equidigital number, since it uses as much as digits as its factorization.

21822863556163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24883200, while the sum is 58.

The spelling of 21822863556163 in words is "twenty-one trillion, eight hundred twenty-two billion, eight hundred sixty-three million, five hundred fifty-six thousand, one hundred sixty-three".