11211121100211 has 8 divisors (see below), whose sum is σ = 14996226296064. Its totient is φ = 7450048318920.

The previous prime is 11211121100183. The next prime is 11211121100213. The reversal of 11211121100211 is 11200112111211.

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

It is not a de Polignac number, because 11211121100211 - 2¹⁸ = 11211120838067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211121100213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6008102551 + ... + 6008104416.

It is an arithmetic number, because the mean of its divisors is an integer number (1874528287008).

Almost surely, 2^{11211121100211} is an apocalyptic number.

11211121100211 is a deficient number, since it is larger than the sum of its proper divisors (3785105195853).

11211121100211 is a wasteful number, since it uses less digits than its factorization.

11211121100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016207281.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11211121100211 its reverse (11200112111211), we get a palindrome (22411233211422).

The spelling of 11211121100211 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-one million, one hundred thousand, two hundred eleven".