12210123009979 has 2 divisors, whose sum is σ = 12210123009980. Its totient is φ = 12210123009978.

The previous prime is 12210123009937. The next prime is 12210123010031. The reversal of 12210123009979 is 97990032101221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12210123009979 - 2¹⁵ = 12210122977211 is a prime.

It is not a weakly prime, because it can be changed into another prime (12210123909979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105061504989 + 6105061504990.

It is an arithmetic number, because the mean of its divisors is an integer number (6105061504990).

Almost surely, 2^{12210123009979} is an apocalyptic number.

12210123009979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210123009979 is an equidigital number, since it uses as much as digits as its factorization.

12210123009979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 46.

The spelling of 12210123009979 in words is "twelve trillion, two hundred ten billion, one hundred twenty-three million, nine thousand, nine hundred seventy-nine".