11221001222 has 8 divisors (see below), whose sum is σ = 16998150672. Its totient is φ = 5554951000.

The previous prime is 11221001221. The next prime is 11221001251. The reversal of 11221001222 is 22210012211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11221001197 and 11221001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221001221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27774554 + ... + 27774957.

It is an arithmetic number, because the mean of its divisors is an integer number (2124768834).

Almost surely, 2^11221001222 is an apocalyptic number.

11221001222 is a deficient number, since it is larger than the sum of its proper divisors (5777149450).

11221001222 is a wasteful number, since it uses less digits than its factorization.

11221001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55549614.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11221001222 its reverse (22210012211), we get a palindrome (33431013433).

The spelling of 11221001222 in words is "eleven billion, two hundred twenty-one million, one thousand, two hundred twenty-two".