11211303222 has 96 divisors (see below), whose sum is σ = 28006305600. Its totient is φ = 3175096320.

The previous prime is 11211303203. The next prime is 11211303223. The reversal of 11211303222 is 22230311211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11211303195 and 11211303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211303223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8486322 + ... + 8487642.

It is an arithmetic number, because the mean of its divisors is an integer number (291732350).

Almost surely, 2^11211303222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11211303222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14003152800).

11211303222 is an abundant number, since it is smaller than the sum of its proper divisors (16795002378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211303222 is a wasteful number, since it uses less digits than its factorization.

11211303222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11211303222 its reverse (22230311211), we get a palindrome (33441614433).

The spelling of 11211303222 in words is "eleven billion, two hundred eleven million, three hundred three thousand, two hundred twenty-two".