111212518554745 has 8 divisors (see below), whose sum is σ = 133455566798784. Its totient is φ = 88969651821744.

The previous prime is 111212518554721. The next prime is 111212518554779. The reversal of 111212518554745 is 547455815212111.

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

It is a cyclic number.

It is not a de Polignac number, because 111212518554745 - 2⁵ = 111212518554713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111212518554692 and 111212518554701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44026149 + ... + 46483618.

It is an arithmetic number, because the mean of its divisors is an integer number (16681945849848).

Almost surely, 2^{111212518554745} is an apocalyptic number.

It is an amenable number.

111212518554745 is a deficient number, since it is larger than the sum of its proper divisors (22243048244039).

111212518554745 is an equidigital number, since it uses as much as digits as its factorization.

111212518554745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90755519.

The product of its digits is 2240000, while the sum is 52.

The spelling of 111212518554745 in words is "one hundred eleven trillion, two hundred twelve billion, five hundred eighteen million, five hundred fifty-four thousand, seven hundred forty-five".