1111722222845 has 12 divisors (see below), whose sum is σ = 1444581066996. Its totient is φ = 820964102400.

The previous prime is 1111722222839. The next prime is 1111722222889. The reversal of 1111722222845 is 5482222271111.

It can be written as a sum of positive squares in 6 ways, for example, as 55815952516 + 1055906270329 = 236254^2 + 1027573^2 .

It is not a de Polignac number, because 1111722222845 - 2³² = 1107427255549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111722222799 and 1111722222808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657822956 + ... + 657824645.

It is an arithmetic number, because the mean of its divisors is an integer number (120381755583).

Almost surely, 2^{1111722222845} is an apocalyptic number.

It is an amenable number.

1111722222845 is a deficient number, since it is larger than the sum of its proper divisors (332858844151).

1111722222845 is a wasteful number, since it uses less digits than its factorization.

1111722222845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315647632 (or 1315647619 counting only the distinct ones).

The product of its digits is 35840, while the sum is 38.

Adding to 1111722222845 its reverse (5482222271111), we get a palindrome (6593944493956).

The spelling of 1111722222845 in words is "one trillion, one hundred eleven billion, seven hundred twenty-two million, two hundred twenty-two thousand, eight hundred forty-five".