201100012189 has 2 divisors, whose sum is σ = 201100012190. Its totient is φ = 201100012188.

The previous prime is 201100012181. The next prime is 201100012213. The reversal of 201100012189 is 981210001102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154717928964 + 46382083225 = 393342^2 + 215365^2 .

It is a cyclic number.

It is not a de Polignac number, because 201100012189 - 2³ = 201100012181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201100012181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550006094 + 100550006095.

It is an arithmetic number, because the mean of its divisors is an integer number (100550006095).

Almost surely, 2^201100012189 is an apocalyptic number.

It is an amenable number.

201100012189 is a deficient number, since it is larger than the sum of its proper divisors (1).

201100012189 is an equidigital number, since it uses as much as digits as its factorization.

201100012189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 201100012189 in words is "two hundred one billion, one hundred million, twelve thousand, one hundred eighty-nine".