11221100212011 has 24 divisors (see below), whose sum is σ = 15877492455312. Its totient is φ = 7043759438400.

The previous prime is 11221100212009. The next prime is 11221100212013. The reversal of 11221100212011 is 11021200112211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11221100212009) and next prime (11221100212013).

It is not a de Polignac number, because 11221100212011 - 2¹ = 11221100212009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221100212013) 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 23 ways as a sum of consecutive naturals, for example, 52490100 + ... + 52703441.

It is an arithmetic number, because the mean of its divisors is an integer number (661562185638).

Almost surely, 2^{11221100212011} is an apocalyptic number.

11221100212011 is a deficient number, since it is larger than the sum of its proper divisors (4656392243301).

11221100212011 is a wasteful number, since it uses less digits than its factorization.

11221100212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105193643 (or 105193612 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11221100212011 its reverse (11021200112211), we get a palindrome (22242300324222).

The spelling of 11221100212011 in words is "eleven trillion, two hundred twenty-one billion, one hundred million, two hundred twelve thousand, eleven".