11217775396 has 9 divisors (see below), whose sum is σ = 19631477649. Its totient is φ = 5608781784.

The previous prime is 11217775381. The next prime is 11217775399. The reversal of 11217775396 is 69357771211.

The square root of 11217775396 is 105914.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 122102500 + 11095672896 = 11050^2 + 105336^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11217775399) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 185350 + ... + 238306.

Almost surely, 2^11217775396 is an apocalyptic number.

11217775396 is the 105914-th square number.

It is an amenable number.

11217775396 is a deficient number, since it is larger than the sum of its proper divisors (8413702253).

11217775396 is an frugal number, since it uses more digits than its factorization.

11217775396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105918 (or 52959 counting only the distinct ones).

The product of its digits is 555660, while the sum is 49.

Multiplying 11217775396 by its sum of digits (49), we get a square (549670994404 = 741398²).

The spelling of 11217775396 in words is "eleven billion, two hundred seventeen million, seven hundred seventy-five thousand, three hundred ninety-six".