120212123189 has 2 divisors, whose sum is σ = 120212123190. Its totient is φ = 120212123188.

The previous prime is 120212123111. The next prime is 120212123197. The reversal of 120212123189 is 981321212021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116875096900 + 3337026289 = 341870^2 + 57767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120212123189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120212123089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106061594 + 60106061595.

It is an arithmetic number, because the mean of its divisors is an integer number (60106061595).

Almost surely, 2^120212123189 is an apocalyptic number.

It is an amenable number.

120212123189 is a deficient number, since it is larger than the sum of its proper divisors (1).

120212123189 is an equidigital number, since it uses as much as digits as its factorization.

120212123189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 120212123189 in words is "one hundred twenty billion, two hundred twelve million, one hundred twenty-three thousand, one hundred eighty-nine".