101000122189 has 2 divisors, whose sum is σ = 101000122190. Its totient is φ = 101000122188.

The previous prime is 101000122187. The next prime is 101000122207. The reversal of 101000122189 is 981221000101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100970146564 + 29975625 = 317758^2 + 5475^2 .

It is an emirp because it is prime and its reverse (981221000101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101000122189 - 2¹ = 101000122187 is a prime.

Together with 101000122187, 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 (101000122187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500061094 + 50500061095.

It is an arithmetic number, because the mean of its divisors is an integer number (50500061095).

Almost surely, 2^101000122189 is an apocalyptic number.

It is an amenable number.

101000122189 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000122189 is an equidigital number, since it uses as much as digits as its factorization.

101000122189 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 25.

The spelling of 101000122189 in words is "one hundred one billion, one hundred twenty-two thousand, one hundred eighty-nine".