11221322312 has 64 divisors (see below), whose sum is σ = 21978000000. Its totient is φ = 5367043584.

The previous prime is 11221322293. The next prime is 11221322327. The reversal of 11221322312 is 21322312211.

11221322312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 3740189 + ... + 3743187.

It is an arithmetic number, because the mean of its divisors is an integer number (343406250).

Almost surely, 2^11221322312 is an apocalyptic number.

It is an amenable number.

11221322312 is a deficient number, since it is larger than the sum of its proper divisors (10756677688).

11221322312 is a wasteful number, since it uses less digits than its factorization.

11221322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270 (or 3266 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 11221322312 its reverse (21322312211), we get a palindrome (32543634523).

The spelling of 11221322312 in words is "eleven billion, two hundred twenty-one million, three hundred twenty-two thousand, three hundred twelve".