111111112222193 has 4 divisors (see below), whose sum is σ = 112633182252708. Its totient is φ = 109589042191680.

The previous prime is 111111112222181. The next prime is 111111112222199. The reversal of 111111112222193 is 391222211111111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71025587918224 + 40085524303969 = 8427668^2 + 6331313^2 .

It is a cyclic number.

It is not a de Polignac number, because 111111112222193 - 2³⁸ = 110836234315249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111111112222199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761035015148 + ... + 761035015293.

It is an arithmetic number, because the mean of its divisors is an integer number (28158295563177).

Almost surely, 2^{111111112222193} is an apocalyptic number.

It is an amenable number.

111111112222193 is a deficient number, since it is larger than the sum of its proper divisors (1522070030515).

111111112222193 is an equidigital number, since it uses as much as digits as its factorization.

111111112222193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522070030514.

The product of its digits is 432, while the sum is 29.

The spelling of 111111112222193 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twelve million, two hundred twenty-two thousand, one hundred ninety-three".