11121001101 has 48 divisors (see below), whose sum is σ = 19774709760. Its totient is φ = 5882453280.

The previous prime is 11121001079. The next prime is 11121001109. The reversal of 11121001101 is 10110012111.

It is not a de Polignac number, because 11121001101 - 2⁵ = 11121001069 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121001109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78871 + ... + 168708.

It is an arithmetic number, because the mean of its divisors is an integer number (411973120).

Almost surely, 2^11121001101 is an apocalyptic number.

It is an amenable number.

11121001101 is a deficient number, since it is larger than the sum of its proper divisors (8653708659).

11121001101 is a wasteful number, since it uses less digits than its factorization.

11121001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247646 (or 247643 counting only the distinct ones).

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

Adding to 11121001101 its reverse (10110012111), we get a palindrome (21231013212).

The spelling of 11121001101 in words is "eleven billion, one hundred twenty-one million, one thousand, one hundred one".