11011221102220 has 12 divisors (see below), whose sum is σ = 23123564314704. Its totient is φ = 4404488440880.

The previous prime is 11011221102191. The next prime is 11011221102241. The reversal of 11011221102220 is 2220112211011.

It is a junction number, because it is equal to n+sod(n) for n = 11011221102194 and 11011221102203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275280527536 + ... + 275280527575.

It is an arithmetic number, because the mean of its divisors is an integer number (1926963692892).

Almost surely, 2^{11011221102220} is an apocalyptic number.

11011221102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011221102220 is an abundant number, since it is smaller than the sum of its proper divisors (12112343212484).

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

11011221102220 is a wasteful number, since it uses less digits than its factorization.

11011221102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550561055120 (or 550561055118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11011221102220 its reverse (2220112211011), we get a palindrome (13231333313231).

The spelling of 11011221102220 in words is "eleven trillion, eleven billion, two hundred twenty-one million, one hundred two thousand, two hundred twenty".