111121222193 has 2 divisors, whose sum is σ = 111121222194. Its totient is φ = 111121222192.

The previous prime is 111121222187. The next prime is 111121222213. The reversal of 111121222193 is 391222121111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109761677809 + 1359544384 = 331303^2 + 36872^2 .

It is an emirp because it is prime and its reverse (391222121111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111121222193 - 2⁶ = 111121222129 is a prime.

It is not a weakly prime, because it can be changed into another prime (111121222123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560611096 + 55560611097.

It is an arithmetic number, because the mean of its divisors is an integer number (55560611097).

Almost surely, 2^111121222193 is an apocalyptic number.

It is an amenable number.

111121222193 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121222193 is an equidigital number, since it uses as much as digits as its factorization.

111121222193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 26.

The spelling of 111121222193 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred ninety-three".