11224455778 has 4 divisors (see below), whose sum is σ = 16836683670. Its totient is φ = 5612227888.

The previous prime is 11224455769. The next prime is 11224455779. The reversal of 11224455778 is 87755442211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6136058889 + 5088396889 = 78333^2 + 71333^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11224455779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2806113943 + ... + 2806113946.

Almost surely, 2^11224455778 is an apocalyptic number.

11224455778 is a deficient number, since it is larger than the sum of its proper divisors (5612227892).

11224455778 is an equidigital number, since it uses as much as digits as its factorization.

11224455778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612227891.

The product of its digits is 627200, while the sum is 46.

Adding to 11224455778 its reverse (87755442211), we get a palindrome (98979897989).

The spelling of 11224455778 in words is "eleven billion, two hundred twenty-four million, four hundred fifty-five thousand, seven hundred seventy-eight".