11220120211 has 8 divisors (see below), whose sum is σ = 11412887040. Its totient is φ = 11027440008.

The previous prime is 11220120143. The next prime is 11220120251. The reversal of 11220120211 is 11202102211.

11220120211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11220120211 - 2⁹ = 11220119699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220120191 and 11220120200.

It is not an unprimeable number, because it can be changed into a prime (11220120251) 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 7 ways as a sum of consecutive naturals, for example, 273910 + ... + 312196.

It is an arithmetic number, because the mean of its divisors is an integer number (1426610880).

Almost surely, 2^11220120211 is an apocalyptic number.

11220120211 is a deficient number, since it is larger than the sum of its proper divisors (192766829).

11220120211 is an equidigital number, since it uses as much as digits as its factorization.

11220120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43313.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11220120211 its reverse (11202102211), we get a palindrome (22422222422).

The spelling of 11220120211 in words is "eleven billion, two hundred twenty million, one hundred twenty thousand, two hundred eleven".