11212122200011 has 4 divisors (see below), whose sum is σ = 11219142941872. Its totient is φ = 11205101458152.

The previous prime is 11212122199913. The next prime is 11212122200023. The reversal of 11212122200011 is 11000222121211.

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 11212122200011 - 2²⁹ = 11211585329099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212122200711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3510368535 + ... + 3510371728.

It is an arithmetic number, because the mean of its divisors is an integer number (2804785735468).

Almost surely, 2^{11212122200011} is an apocalyptic number.

11212122200011 is a deficient number, since it is larger than the sum of its proper divisors (7020741861).

11212122200011 is an equidigital number, since it uses as much as digits as its factorization.

11212122200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020741860.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11212122200011 its reverse (11000222121211), we get a palindrome (22212344321222).

The spelling of 11212122200011 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, two hundred thousand, eleven".