11101221102105 has 32 divisors (see below), whose sum is σ = 19735895788800. Its totient is φ = 5920533772416.

The previous prime is 11101221102073. The next prime is 11101221102107. The reversal of 11101221102105 is 50120112210111.

It is a happy number.

It is not a de Polignac number, because 11101221102105 - 2⁵ = 11101221102073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11101221102107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6237876 + ... + 7817514.

It is an arithmetic number, because the mean of its divisors is an integer number (616746743400).

Almost surely, 2^{11101221102105} is an apocalyptic number.

11101221102105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11101221102105 is a deficient number, since it is larger than the sum of its proper divisors (8634674686695).

11101221102105 is a wasteful number, since it uses less digits than its factorization.

11101221102105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631710 (or 1631704 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

Adding to 11101221102105 its reverse (50120112210111), we get a palindrome (61221333312216).

The spelling of 11101221102105 in words is "eleven trillion, one hundred one billion, two hundred twenty-one million, one hundred two thousand, one hundred five".