11121112111101 has 16 divisors (see below), whose sum is σ = 15307309897728. Its totient is φ = 7174520564400.

The previous prime is 11121112111063. The next prime is 11121112111129. The reversal of 11121112111101 is 10111121112111.

It is a happy number.

It is not a de Polignac number, because 11121112111101 - 2¹⁰ = 11121112110077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121112111201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1531035 + ... + 4958456.

It is an arithmetic number, because the mean of its divisors is an integer number (956706868608).

Almost surely, 2^{11121112111101} is an apocalyptic number.

It is an amenable number.

11121112111101 is a deficient number, since it is larger than the sum of its proper divisors (4186197786627).

11121112111101 is a wasteful number, since it uses less digits than its factorization.

11121112111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507952.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 11121112111101 its reverse (10111121112111), we get a palindrome (21232233223212).

It can be divided in two parts, 11121112111 and 101, that multiplied together give a palindrome (1123232323211).

The spelling of 11121112111101 in words is "eleven trillion, one hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, one hundred one".