11221220121179 has 2 divisors, whose sum is σ = 11221220121180. Its totient is φ = 11221220121178.

The previous prime is 11221220121047. The next prime is 11221220121211. The reversal of 11221220121179 is 97112102212211.

It is an a-pointer prime, because the next prime (11221220121211) can be obtained adding 11221220121179 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221220121179 is a prime.

It is not a weakly prime, because it can be changed into another prime (11221220121479) 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, 5610610060589 + 5610610060590.

It is an arithmetic number, because the mean of its divisors is an integer number (5610610060590).

Almost surely, 2^{11221220121179} is an apocalyptic number.

11221220121179 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221220121179 is an equidigital number, since it uses as much as digits as its factorization.

11221220121179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 32.

The spelling of 11221220121179 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred seventy-nine".