11211130211 has 4 divisors (see below), whose sum is σ = 11211342024. Its totient is φ = 11210918400.

The previous prime is 11211130127. The next prime is 11211130219. The reversal of 11211130211 is 11203111211.

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 11211130211 - 2²² = 11206935907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211130219) 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, 49616 + ... + 157746.

It is an arithmetic number, because the mean of its divisors is an integer number (2802835506).

Almost surely, 2^11211130211 is an apocalyptic number.

11211130211 is a deficient number, since it is larger than the sum of its proper divisors (211813).

11211130211 is a wasteful number, since it uses less digits than its factorization.

11211130211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211812.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11211130211 its reverse (11203111211), we get a palindrome (22414241422).

The spelling of 11211130211 in words is "eleven billion, two hundred eleven million, one hundred thirty thousand, two hundred eleven".