11228808697 has 2 divisors, whose sum is σ = 11228808698. Its totient is φ = 11228808696.

The previous prime is 11228808683. The next prime is 11228808709. The reversal of 11228808697 is 79680882211.

It is a happy number.

11228808697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10860974656 + 367834041 = 104216^2 + 19179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11228808697 is a prime.

It is a super-2 number, since 2×11228808697² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11228808797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5614404348 + 5614404349.

It is an arithmetic number, because the mean of its divisors is an integer number (5614404349).

Almost surely, 2^11228808697 is an apocalyptic number.

It is an amenable number.

11228808697 is a deficient number, since it is larger than the sum of its proper divisors (1).

11228808697 is an equidigital number, since it uses as much as digits as its factorization.

11228808697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 52.

The spelling of 11228808697 in words is "eleven billion, two hundred twenty-eight million, eight hundred eight thousand, six hundred ninety-seven".