11220133211 has 8 divisors (see below), whose sum is σ = 13236655104. Its totient is φ = 9307022760.

The previous prime is 11220133207. The next prime is 11220133219. The reversal of 11220133211 is 11233102211.

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

It is not a de Polignac number, because 11220133211 - 2² = 11220133207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11220133211.

It is not an unprimeable number, because it can be changed into a prime (11220133219) 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, 25852625 + ... + 25853058.

It is an arithmetic number, because the mean of its divisors is an integer number (1654581888).

Almost surely, 2^11220133211 is an apocalyptic number.

11220133211 is a deficient number, since it is larger than the sum of its proper divisors (2016521893).

11220133211 is an equidigital number, since it uses as much as digits as its factorization.

11220133211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51705721.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11220133211 its reverse (11233102211), we get a palindrome (22453235422).

The spelling of 11220133211 in words is "eleven billion, two hundred twenty million, one hundred thirty-three thousand, two hundred eleven".