111112010219977 has 4 divisors (see below), whose sum is σ = 119659087929220. Its totient is φ = 102564932510736.

The previous prime is 111112010219953. The next prime is 111112010219993. The reversal of 111112010219977 is 779912010211111.

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 58488171835536 + 52623838384441 = 7647756^2 + 7254229^2 .

It is a cyclic number.

It is not a de Polignac number, because 111112010219977 - 2¹⁹ = 111112009695689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111112010219927) 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, 4273538854602 + ... + 4273538854627.

It is an arithmetic number, because the mean of its divisors is an integer number (29914771982305).

Almost surely, 2^{111112010219977} is an apocalyptic number.

It is an amenable number.

111112010219977 is a deficient number, since it is larger than the sum of its proper divisors (8547077709243).

111112010219977 is an equidigital number, since it uses as much as digits as its factorization.

111112010219977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8547077709242.

The product of its (nonzero) digits is 15876, while the sum is 43.

The spelling of 111112010219977 in words is "one hundred eleven trillion, one hundred twelve billion, ten million, two hundred nineteen thousand, nine hundred seventy-seven".