11201100112221 has 16 divisors (see below), whose sum is σ = 14995218116736. Its totient is φ = 7437204848576.

The previous prime is 11201100112177. The next prime is 11201100112243. The reversal of 11201100112221 is 12221100110211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11201100112221 - 2³⁴ = 11183920243037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11201100112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201100112921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543471 + ... + 4978403.

It is an arithmetic number, because the mean of its divisors is an integer number (937201132296).

Almost surely, 2^{11201100112221} is an apocalyptic number.

It is an amenable number.

11201100112221 is a deficient number, since it is larger than the sum of its proper divisors (3794118004515).

11201100112221 is a wasteful number, since it uses less digits than its factorization.

11201100112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439332.

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

Adding to 11201100112221 its reverse (12221100110211), we get a palindrome (23422200222432).

The spelling of 11201100112221 in words is "eleven trillion, two hundred one billion, one hundred million, one hundred twelve thousand, two hundred twenty-one".