11121101201111 has 8 divisors (see below), whose sum is σ = 12227638831104. Its totient is φ = 10030484976120.

The previous prime is 11121101201101. The next prime is 11121101201129. The reversal of 11121101201111 is 11110210112111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121101201111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121101201101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3980349785 + ... + 3980352578.

It is an arithmetic number, because the mean of its divisors is an integer number (1528454853888).

Almost surely, 2^{11121101201111} is an apocalyptic number.

11121101201111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11121101201111 is a deficient number, since it is larger than the sum of its proper divisors (1106537629993).

11121101201111 is a wasteful number, since it uses less digits than its factorization.

11121101201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7960702501.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 11121101201111 its reverse (11110210112111), we get a palindrome (22231311313222).

The spelling of 11121101201111 in words is "eleven trillion, one hundred twenty-one billion, one hundred one million, two hundred one thousand, one hundred eleven".