2021100220163 has 2 divisors, whose sum is σ = 2021100220164. Its totient is φ = 2021100220162.

The previous prime is 2021100220159. The next prime is 2021100220213. The reversal of 2021100220163 is 3610220011202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021100220163 - 2² = 2021100220159 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021100228163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010550110081 + 1010550110082.

It is an arithmetic number, because the mean of its divisors is an integer number (1010550110082).

Almost surely, 2^{2021100220163} is an apocalyptic number.

2021100220163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021100220163 is an equidigital number, since it uses as much as digits as its factorization.

2021100220163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2021100220163 its reverse (3610220011202), we get a palindrome (5631320231365).

The spelling of 2021100220163 in words is "two trillion, twenty-one billion, one hundred million, two hundred twenty thousand, one hundred sixty-three".