11200222221220 has 12 divisors (see below), whose sum is σ = 23520466664604. Its totient is φ = 4480088888480.

The previous prime is 11200222221113. The next prime is 11200222221229. The reversal of 11200222221220 is 2212222200211.

It can be written as a sum of positive squares in 2 ways, for example, as 6338752865344 + 4861469355876 = 2517688^2 + 2204874^2 .

It is not an unprimeable number, because it can be changed into a prime (11200222221229) 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 3 ways as a sum of consecutive naturals, for example, 280005555511 + ... + 280005555550.

It is an arithmetic number, because the mean of its divisors is an integer number (1960038888717).

Almost surely, 2^{11200222221220} is an apocalyptic number.

11200222221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11200222221220 is an abundant number, since it is smaller than the sum of its proper divisors (12320244443384).

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

11200222221220 is a wasteful number, since it uses less digits than its factorization.

11200222221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560011111070 (or 560011111068 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 11200222221220 its reverse (2212222200211), we get a palindrome (13412444421431).

The spelling of 11200222221220 in words is "eleven trillion, two hundred billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty".