212223323131189 has 2 divisors, whose sum is σ = 212223323131190. Its totient is φ = 212223323131188.

The previous prime is 212223323131187. The next prime is 212223323131249. The reversal of 212223323131189 is 981131323322212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204928100396100 + 7295222735089 = 14315310^2 + 2700967^2 .

It is a cyclic number.

It is not a de Polignac number, because 212223323131189 - 2¹ = 212223323131187 is a prime.

Together with 212223323131187, 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 (212223323131187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111661565594 + 106111661565595.

It is an arithmetic number, because the mean of its divisors is an integer number (106111661565595).

Almost surely, 2^{212223323131189} is an apocalyptic number.

It is an amenable number.

212223323131189 is a deficient number, since it is larger than the sum of its proper divisors (1).

212223323131189 is an equidigital number, since it uses as much as digits as its factorization.

212223323131189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The spelling of 212223323131189 in words is "two hundred twelve trillion, two hundred twenty-three billion, three hundred twenty-three million, one hundred thirty-one thousand, one hundred eighty-nine".