20102220112189 has 2 divisors, whose sum is σ = 20102220112190. Its totient is φ = 20102220112188.

The previous prime is 20102220112157. The next prime is 20102220112213. The reversal of 20102220112189 is 98121102220102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10328574716100 + 9773645396089 = 3213810^2 + 3126283^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102220112189 - 2⁵ = 20102220112157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20102220112189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102220112129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051110056094 + 10051110056095.

It is an arithmetic number, because the mean of its divisors is an integer number (10051110056095).

Almost surely, 2^{20102220112189} is an apocalyptic number.

It is an amenable number.

20102220112189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102220112189 is an equidigital number, since it uses as much as digits as its factorization.

20102220112189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 20102220112189 in words is "twenty trillion, one hundred two billion, two hundred twenty million, one hundred twelve thousand, one hundred eighty-nine".