11223144220 has 24 divisors (see below), whose sum is σ = 23601412800. Its totient is φ = 4483008192.

The previous prime is 11223144209. The next prime is 11223144259. The reversal of 11223144220 is 2244132211.

It is a super-3 number, since 3×11223144220³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11223144191 and 11223144200.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 375855 + ... + 404614.

It is an arithmetic number, because the mean of its divisors is an integer number (983392200).

Almost surely, 2^11223144220 is an apocalyptic number.

11223144220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11223144220 is an abundant number, since it is smaller than the sum of its proper divisors (12378268580).

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

11223144220 is a wasteful number, since it uses less digits than its factorization.

11223144220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781197 (or 781195 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11223144220 its reverse (2244132211), we get a palindrome (13467276431).

The spelling of 11223144220 in words is "eleven billion, two hundred twenty-three million, one hundred forty-four thousand, two hundred twenty".