111221001179 has 2 divisors, whose sum is σ = 111221001180. Its totient is φ = 111221001178.

The previous prime is 111221001149. The next prime is 111221001187. The reversal of 111221001179 is 971100122111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111221001179 - 2²⁰ = 111219952603 is a prime.

It is a super-2 number, since 2×111221001179² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111221001109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610500589 + 55610500590.

It is an arithmetic number, because the mean of its divisors is an integer number (55610500590).

Almost surely, 2^111221001179 is an apocalyptic number.

111221001179 is a deficient number, since it is larger than the sum of its proper divisors (1).

111221001179 is an equidigital number, since it uses as much as digits as its factorization.

111221001179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 26.

The spelling of 111221001179 in words is "one hundred eleven billion, two hundred twenty-one million, one thousand, one hundred seventy-nine".