11101217012005 has 4 divisors (see below), whose sum is σ = 13321460414412. Its totient is φ = 8880973609600.

The previous prime is 11101217011999. The next prime is 11101217012059. The reversal of 11101217012005 is 50021071210111.

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 4962085925476 + 6139131086529 = 2227574^2 + 2477727^2 .

It is not a de Polignac number, because 11101217012005 - 2³⁷ = 10963778058533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110121701196 + ... + 1110121701205.

It is an arithmetic number, because the mean of its divisors is an integer number (3330365103603).

Almost surely, 2^{11101217012005} is an apocalyptic number.

It is an amenable number.

11101217012005 is a deficient number, since it is larger than the sum of its proper divisors (2220243402407).

11101217012005 is an equidigital number, since it uses as much as digits as its factorization.

11101217012005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220243402406.

The product of its (nonzero) digits is 140, while the sum is 22.

Adding to 11101217012005 its reverse (50021071210111), we get a palindrome (61122288222116).

The spelling of 11101217012005 in words is "eleven trillion, one hundred one billion, two hundred seventeen million, twelve thousand, five".