11000043220 has 12 divisors (see below), whose sum is σ = 23100090804. Its totient is φ = 4400017280.

The previous prime is 11000043169. The next prime is 11000043233. The reversal of 11000043220 is 2234000011.

It can be written as a sum of positive squares in 2 ways, for example, as 7462886544 + 3537156676 = 86388^2 + 59474^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11000043220.

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 3 ways as a sum of consecutive naturals, for example, 275001061 + ... + 275001100.

It is an arithmetic number, because the mean of its divisors is an integer number (1925007567).

Almost surely, 2^11000043220 is an apocalyptic number.

11000043220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000043220 is an abundant number, since it is smaller than the sum of its proper divisors (12100047584).

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

11000043220 is a wasteful number, since it uses less digits than its factorization.

11000043220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550002170 (or 550002168 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 11000043220 its reverse (2234000011), we get a palindrome (13234043231).

The spelling of 11000043220 in words is "eleven billion, forty-three thousand, two hundred twenty".