111042215215 has 8 divisors (see below), whose sum is σ = 133276811328. Its totient is φ = 88816336800.

The previous prime is 111042215213. The next prime is 111042215231. The reversal of 111042215215 is 512512240111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111042215215 - 2¹ = 111042215213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111042215215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111042215213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151367 + ... + 2202376.

It is an arithmetic number, because the mean of its divisors is an integer number (16659601416).

Almost surely, 2^111042215215 is an apocalyptic number.

111042215215 is a deficient number, since it is larger than the sum of its proper divisors (22234596113).

111042215215 is an equidigital number, since it uses as much as digits as its factorization.

111042215215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358849.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 111042215215 its reverse (512512240111), we get a palindrome (623554455326).

The spelling of 111042215215 in words is "one hundred eleven billion, forty-two million, two hundred fifteen thousand, two hundred fifteen".