11220012211 has 8 divisors (see below), whose sum is σ = 11380621824. Its totient is φ = 11059474440.

The previous prime is 11220012151. The next prime is 11220012227. The reversal of 11220012211 is 11221002211.

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 11220012211 - 2¹¹ = 11220010163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220012191 and 11220012200.

It is not an unprimeable number, because it can be changed into a prime (11220072211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350086 + ... + 380788.

It is an arithmetic number, because the mean of its divisors is an integer number (1422577728).

Almost surely, 2^11220012211 is an apocalyptic number.

11220012211 is a deficient number, since it is larger than the sum of its proper divisors (160609613).

11220012211 is an equidigital number, since it uses as much as digits as its factorization.

11220012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35921.

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

Adding to 11220012211 its reverse (11221002211), we get a palindrome (22441014422).

The spelling of 11220012211 in words is "eleven billion, two hundred twenty million, twelve thousand, two hundred eleven".