11120211100221 has 16 divisors (see below), whose sum is σ = 15188684813568. Its totient is φ = 7232608198400.

The previous prime is 11120211100199. The next prime is 11120211100241. The reversal of 11120211100221 is 12200111202111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11120211100221 - 2⁹ = 11120211099709 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11120211100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120211100241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29087905 + ... + 29467721.

It is an arithmetic number, because the mean of its divisors is an integer number (949292800848).

Almost surely, 2^{11120211100221} is an apocalyptic number.

It is an amenable number.

11120211100221 is a deficient number, since it is larger than the sum of its proper divisors (4068473713347).

11120211100221 is a wasteful number, since it uses less digits than its factorization.

11120211100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617892.

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

Adding to 11120211100221 its reverse (12200111202111), we get a palindrome (23320322302332).

The spelling of 11120211100221 in words is "eleven trillion, one hundred twenty billion, two hundred eleven million, one hundred thousand, two hundred twenty-one".