112012121210189 has 2 divisors, whose sum is σ = 112012121210190. Its totient is φ = 112012121210188.

The previous prime is 112012121210147. The next prime is 112012121210221. The reversal of 112012121210189 is 981012121210211.

It is an a-pointer prime, because the next prime (112012121210221) can be obtained adding 112012121210189 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75290242230025 + 36721878980164 = 8676995^2 + 6059858^2 .

It is a cyclic number.

It is not a de Polignac number, because 112012121210189 - 2⁴⁰ = 110912609582413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112012121210389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56006060605094 + 56006060605095.

It is an arithmetic number, because the mean of its divisors is an integer number (56006060605095).

Almost surely, 2^{112012121210189} is an apocalyptic number.

It is an amenable number.

112012121210189 is a deficient number, since it is larger than the sum of its proper divisors (1).

112012121210189 is an equidigital number, since it uses as much as digits as its factorization.

112012121210189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 32.

The spelling of 112012121210189 in words is "one hundred twelve trillion, twelve billion, one hundred twenty-one million, two hundred ten thousand, one hundred eighty-nine".