11211101012011 has 4 divisors (see below), whose sum is σ = 11213399786832. Its totient is φ = 11208802237192.

The previous prime is 11211101012003. The next prime is 11211101012119. The reversal of 11211101012011 is 11021010111211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11211101012011 - 2³ = 11211101012003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11211101011982 and 11211101012000.

It is not an unprimeable number, because it can be changed into a prime (11211101012411) 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, 1149380095 + ... + 1149389848.

It is an arithmetic number, because the mean of its divisors is an integer number (2803349946708).

Almost surely, 2^{11211101012011} is an apocalyptic number.

11211101012011 is a deficient number, since it is larger than the sum of its proper divisors (2298774821).

11211101012011 is an equidigital number, since it uses as much as digits as its factorization.

11211101012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298774820.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11211101012011 its reverse (11021010111211), we get a palindrome (22232111123222).

The spelling of 11211101012011 in words is "eleven trillion, two hundred eleven billion, one hundred one million, twelve thousand, eleven".