22111133220 has 96 divisors (see below), whose sum is σ = 75043866240. Its totient is φ = 5360273280.

The previous prime is 22111133179. The next prime is 22111133227. The reversal of 22111133220 is 2233111122.

22111133220 is a `hidden beast` number, since 221 + 111 + 332 + 2 + 0 = 666.

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 = 22111133193 and 22111133202.

It is not an unprimeable number, because it can be changed into a prime (22111133227) 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 in 31 ways as a sum of consecutive naturals, for example, 1855267 + ... + 1867146.

It is an arithmetic number, because the mean of its divisors is an integer number (781706940).

Almost surely, 2^22111133220 is an apocalyptic number.

22111133220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111133220 is an abundant number, since it is smaller than the sum of its proper divisors (52932733020).

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

22111133220 is a wasteful number, since it uses less digits than its factorization.

22111133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722442 (or 3722434 counting only the distinct ones).

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

Adding to 22111133220 its reverse (2233111122), we get a palindrome (24344244342).

The spelling of 22111133220 in words is "twenty-two billion, one hundred eleven million, one hundred thirty-three thousand, two hundred twenty".