11212222244 has 6 divisors (see below), whose sum is σ = 19621388934. Its totient is φ = 5606111120.

The previous prime is 11212222243. The next prime is 11212222253. The reversal of 11212222244 is 44222221211.

11212222244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9248668900 + 1963553344 = 96170^2 + 44312^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11212222243) 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, 1401527777 + ... + 1401527784.

It is an arithmetic number, because the mean of its divisors is an integer number (3270231489).

Almost surely, 2^11212222244 is an apocalyptic number.

It is an amenable number.

11212222244 is a deficient number, since it is larger than the sum of its proper divisors (8409166690).

11212222244 is a wasteful number, since it uses less digits than its factorization.

11212222244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803055565 (or 2803055563 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

Adding to 11212222244 its reverse (44222221211), we get a palindrome (55434443455).

The spelling of 11212222244 in words is "eleven billion, two hundred twelve million, two hundred twenty-two thousand, two hundred forty-four".