1112216045 has 4 divisors (see below), whose sum is σ = 1334659260. Its totient is φ = 889772832.

The previous prime is 1112216029. The next prime is 1112216059. The reversal of 1112216045 is 5406122111.

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 549292969 + 562923076 = 23437^2 + 23726^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112216045 - 2⁴ = 1112216029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112216045.

It is a congruent number.

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, 111221600 + ... + 111221609.

It is an arithmetic number, because the mean of its divisors is an integer number (333664815).

Almost surely, 2^1112216045 is an apocalyptic number.

It is an amenable number.

1112216045 is a deficient number, since it is larger than the sum of its proper divisors (222443215).

1112216045 is an equidigital number, since it uses as much as digits as its factorization.

1112216045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222443214.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1112216045 is about 33349.9032232479. The cubic root of 1112216045 is about 1036.0873835571.

Adding to 1112216045 its reverse (5406122111), we get a palindrome (6518338156).

The spelling of 1112216045 in words is "one billion, one hundred twelve million, two hundred sixteen thousand, forty-five".