11001312211 has 8 divisors (see below), whose sum is σ = 11181468080. Its totient is φ = 10821952512.

The previous prime is 11001312199. The next prime is 11001312247. The reversal of 11001312211 is 11221310011.

It is a happy number.

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 11001312211 - 2¹⁹ = 11000787923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001312191 and 11001312200.

It is not an unprimeable number, because it can be changed into a prime (11001312281) 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, 171150 + ... + 226483.

It is an arithmetic number, because the mean of its divisors is an integer number (1397683510).

Almost surely, 2^11001312211 is an apocalyptic number.

11001312211 is a deficient number, since it is larger than the sum of its proper divisors (180155869).

11001312211 is an equidigital number, since it uses as much as digits as its factorization.

11001312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398085.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11001312211 its reverse (11221310011), we get a palindrome (22222622222).

The spelling of 11001312211 in words is "eleven billion, one million, three hundred twelve thousand, two hundred eleven".