20211010210189 has 2 divisors, whose sum is σ = 20211010210190. Its totient is φ = 20211010210188.

The previous prime is 20211010210187. The next prime is 20211010210219. The reversal of 20211010210189 is 98101201011202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15197195096164 + 5013815114025 = 3898358^2 + 2239155^2 .

It is a cyclic number.

It is not a de Polignac number, because 20211010210189 - 2¹ = 20211010210187 is a prime.

Together with 20211010210187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211010210187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105505105094 + 10105505105095.

It is an arithmetic number, because the mean of its divisors is an integer number (10105505105095).

Almost surely, 2^{20211010210189} is an apocalyptic number.

It is an amenable number.

20211010210189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211010210189 is an equidigital number, since it uses as much as digits as its factorization.

20211010210189 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 28.

The spelling of 20211010210189 in words is "twenty trillion, two hundred eleven billion, ten million, two hundred ten thousand, one hundred eighty-nine".