12201120121979 has 2 divisors, whose sum is σ = 12201120121980. Its totient is φ = 12201120121978.

The previous prime is 12201120121969. The next prime is 12201120122017. The reversal of 12201120121979 is 97912102110221.

It is an a-pointer prime, because the next prime (12201120122017) can be obtained adding 12201120121979 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12201120121979 - 2²⁸ = 12200851686523 is a prime.

It is not a weakly prime, because it can be changed into another prime (12201120121909) 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, 6100560060989 + 6100560060990.

It is an arithmetic number, because the mean of its divisors is an integer number (6100560060990).

Almost surely, 2^{12201120121979} is an apocalyptic number.

12201120121979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201120121979 is an equidigital number, since it uses as much as digits as its factorization.

12201120121979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 38.

The spelling of 12201120121979 in words is "twelve trillion, two hundred one billion, one hundred twenty million, one hundred twenty-one thousand, nine hundred seventy-nine".