11301220211 has 4 divisors (see below), whose sum is σ = 11301432912. Its totient is φ = 11301007512.

The previous prime is 11301220207. The next prime is 11301220213. The reversal of 11301220211 is 11202210311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11301220211 - 2² = 11301220207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11301220213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48650 + ... + 158016.

It is an arithmetic number, because the mean of its divisors is an integer number (2825358228).

Almost surely, 2^11301220211 is an apocalyptic number.

11301220211 is a deficient number, since it is larger than the sum of its proper divisors (212701).

11301220211 is a wasteful number, since it uses less digits than its factorization.

11301220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212700.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11301220211 its reverse (11202210311), we get a palindrome (22503430522).

The spelling of 11301220211 in words is "eleven billion, three hundred one million, two hundred twenty thousand, two hundred eleven".