11001100120101 has 288 divisors, whose sum is σ = 21633849968640. Its totient is φ = 5320701001728.

The previous prime is 11001100120099. The next prime is 11001100120163. The reversal of 11001100120101 is 10102100110011.

It is not a de Polignac number, because 11001100120101 - 2¹ = 11001100120099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001100120201) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 777840636 + ... + 777854778.

Almost surely, 2^{11001100120101} is an apocalyptic number.

It is an amenable number.

11001100120101 is a deficient number, since it is larger than the sum of its proper divisors (10632749848539).

11001100120101 is a wasteful number, since it uses less digits than its factorization.

11001100120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14425 (or 14415 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11001100120101 its reverse (10102100110011), we get a palindrome (21103200230112).

The spelling of 11001100120101 in words is "eleven trillion, one billion, one hundred million, one hundred twenty thousand, one hundred one".