12101120221979 has 2 divisors, whose sum is σ = 12101120221980. Its totient is φ = 12101120221978.

The previous prime is 12101120221963. The next prime is 12101120222057. The reversal of 12101120221979 is 97912202110121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12101120221979 - 2⁴ = 12101120221963 is a prime.

It is a super-2 number, since 2×12101120221979² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12101120211979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050560110989 + 6050560110990.

It is an arithmetic number, because the mean of its divisors is an integer number (6050560110990).

Almost surely, 2^{12101120221979} is an apocalyptic number.

12101120221979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101120221979 is an equidigital number, since it uses as much as digits as its factorization.

12101120221979 is an evil number, because the sum of its binary digits is even.

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

The spelling of 12101120221979 in words is "twelve trillion, one hundred one billion, one hundred twenty million, two hundred twenty-one thousand, nine hundred seventy-nine".