11201211011 has 4 divisors (see below), whose sum is σ = 11249285112. Its totient is φ = 11153136912.

The previous prime is 11201210989. The next prime is 11201211017. The reversal of 11201211011 is 11011210211.

11201211011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11011210211 = 4153 ⋅2651387.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11201211011 is a prime.

It is a super-2 number, since 2×11201211011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201210983 and 11201211001.

It is not an unprimeable number, because it can be changed into a prime (11201211017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24036701 + ... + 24037166.

It is an arithmetic number, because the mean of its divisors is an integer number (2812321278).

Almost surely, 2^11201211011 is an apocalyptic number.

11201211011 is a deficient number, since it is larger than the sum of its proper divisors (48074101).

11201211011 is an equidigital number, since it uses as much as digits as its factorization.

11201211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48074100.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11201211011 its reverse (11011210211), we get a palindrome (22212421222).

The spelling of 11201211011 in words is "eleven billion, two hundred one million, two hundred eleven thousand, eleven".