11211101211 has 8 divisors (see below), whose sum is σ = 15102239824. Its totient is φ = 7397015040.

The previous prime is 11211101201. The next prime is 11211101219. The reversal of 11211101211 is 11210111211.

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

It is not a de Polignac number, because 11211101211 - 2¹⁷ = 11210970139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211101219) 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, 19262770 + ... + 19263351.

It is an arithmetic number, because the mean of its divisors is an integer number (1887779978).

Almost surely, 2^11211101211 is an apocalyptic number.

11211101211 is a deficient number, since it is larger than the sum of its proper divisors (3891138613).

11211101211 is an equidigital number, since it uses as much as digits as its factorization.

11211101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38526221.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11211101211 its reverse (11210111211), we get a palindrome (22421212422).

The spelling of 11211101211 in words is "eleven billion, two hundred eleven million, one hundred one thousand, two hundred eleven".