111221212098163 has 2 divisors, whose sum is σ = 111221212098164. Its totient is φ = 111221212098162.

The previous prime is 111221212098127. The next prime is 111221212098221. The reversal of 111221212098163 is 361890212122111.

It is a weak prime.

It is an emirp because it is prime and its reverse (361890212122111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111221212098163 - 2²⁵ = 111221178543731 is a prime.

It is not a weakly prime, because it can be changed into another prime (111221212098463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610606049081 + 55610606049082.

It is an arithmetic number, because the mean of its divisors is an integer number (55610606049082).

Almost surely, 2^{111221212098163} is an apocalyptic number.

111221212098163 is a deficient number, since it is larger than the sum of its proper divisors (1).

111221212098163 is an equidigital number, since it uses as much as digits as its factorization.

111221212098163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 40.

The spelling of 111221212098163 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred twelve million, ninety-eight thousand, one hundred sixty-three".