11121200201005 has 4 divisors (see below), whose sum is σ = 13345440241212. Its totient is φ = 8896960160800.

The previous prime is 11121200201003. The next prime is 11121200201053. The reversal of 11121200201005 is 50010200212111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7077228013636 + 4043972187369 = 2660306^2 + 2010963^2 .

It is not a de Polignac number, because 11121200201005 - 2¹ = 11121200201003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121200201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121200201003) 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, 1112120020096 + ... + 1112120020105.

It is an arithmetic number, because the mean of its divisors is an integer number (3336360060303).

Almost surely, 2^{11121200201005} is an apocalyptic number.

It is an amenable number.

11121200201005 is a deficient number, since it is larger than the sum of its proper divisors (2224240040207).

11121200201005 is an equidigital number, since it uses as much as digits as its factorization.

11121200201005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224240040206.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 11121200201005 its reverse (50010200212111), we get a palindrome (61131400413116).

The spelling of 11121200201005 in words is "eleven trillion, one hundred twenty-one billion, two hundred million, two hundred one thousand, five".