11222332220 has 96 divisors (see below), whose sum is σ = 26439340032. Its totient is φ = 3965760000.

The previous prime is 11222332181. The next prime is 11222332223. The reversal of 11222332220 is 2223322211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11222332192 and 11222332201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222332223) 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 31 ways as a sum of consecutive naturals, for example, 2442125 + ... + 2446715.

It is an arithmetic number, because the mean of its divisors is an integer number (275409792).

Almost surely, 2^11222332220 is an apocalyptic number.

11222332220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11222332220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13219670016).

11222332220 is an abundant number, since it is smaller than the sum of its proper divisors (15217007812).

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

11222332220 is a wasteful number, since it uses less digits than its factorization.

11222332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923 (or 4921 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 11222332220 its reverse (2223322211), we get a palindrome (13445654431).

It can be divided in two parts, 1 and 1222332220, that added together give a palindrome (1222332221).

The spelling of 11222332220 in words is "eleven billion, two hundred twenty-two million, three hundred thirty-two thousand, two hundred twenty".