1105220705065 has 4 divisors (see below), whose sum is σ = 1326264846084. Its totient is φ = 884176564048.

The previous prime is 1105220705051. The next prime is 1105220705081. The reversal of 1105220705065 is 5605070225011.

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 321321189904 + 783899515161 = 566852^2 + 885381^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105220705065 - 2²⁵ = 1105187150633 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 1105220705065.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110522070502 + ... + 110522070511.

It is an arithmetic number, because the mean of its divisors is an integer number (331566211521).

Almost surely, 2^{1105220705065} is an apocalyptic number.

It is an amenable number.

1105220705065 is a deficient number, since it is larger than the sum of its proper divisors (221044141019).

1105220705065 is an equidigital number, since it uses as much as digits as its factorization.

1105220705065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221044141018.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 1105220705065 in words is "one trillion, one hundred five billion, two hundred twenty million, seven hundred five thousand, sixty-five".