12221121020179 has 2 divisors, whose sum is σ = 12221121020180. Its totient is φ = 12221121020178.

The previous prime is 12221121019997. The next prime is 12221121020221. The reversal of 12221121020179 is 97102012112221.

12221121020179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221121020179 - 2¹¹ = 12221121018131 is a prime.

It is a super-2 number, since 2×12221121020179² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12221121020179.

It is not a weakly prime, because it can be changed into another prime (12221121020279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110560510089 + 6110560510090.

It is an arithmetic number, because the mean of its divisors is an integer number (6110560510090).

Almost surely, 2^{12221121020179} is an apocalyptic number.

12221121020179 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221121020179 is an equidigital number, since it uses as much as digits as its factorization.

12221121020179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 12221121020179 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty thousand, one hundred seventy-nine".