11105222761 has 2 divisors, whose sum is σ = 11105222762. Its totient is φ = 11105222760.

The previous prime is 11105222753. The next prime is 11105222797. The reversal of 11105222761 is 16722250111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11105155161 + 67600 = 105381^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 11105222761 - 2³ = 11105222753 is a prime.

It is not a weakly prime, because it can be changed into another prime (11105222701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5552611380 + 5552611381.

It is an arithmetic number, because the mean of its divisors is an integer number (5552611381).

Almost surely, 2^11105222761 is an apocalyptic number.

It is an amenable number.

11105222761 is a deficient number, since it is larger than the sum of its proper divisors (1).

11105222761 is an equidigital number, since it uses as much as digits as its factorization.

11105222761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

Adding to 11105222761 its reverse (16722250111), we get a palindrome (27827472872).

The spelling of 11105222761 in words is "eleven billion, one hundred five million, two hundred twenty-two thousand, seven hundred sixty-one".