11212221110011 has 4 divisors (see below), whose sum is σ = 11213634482512. Its totient is φ = 11210807737512.

The previous prime is 11212221109949. The next prime is 11212221110059. The reversal of 11212221110011 is 11001112221211.

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 11212221110011 - 2²³ = 11212212721403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212221110711) 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, 706674351 + ... + 706690216.

It is an arithmetic number, because the mean of its divisors is an integer number (2803408620628).

Almost surely, 2^{11212221110011} is an apocalyptic number.

11212221110011 is a deficient number, since it is larger than the sum of its proper divisors (1413372501).

11212221110011 is an equidigital number, since it uses as much as digits as its factorization.

11212221110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413372500.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11212221110011 its reverse (11001112221211), we get a palindrome (22213333331222).

The spelling of 11212221110011 in words is "eleven trillion, two hundred twelve billion, two hundred twenty-one million, one hundred ten thousand, eleven".