11122001111 has 8 divisors (see below), whose sum is σ = 12002551680. Its totient is φ = 10245023712.

The previous prime is 11122001089. The next prime is 11122001119. The reversal of 11122001111 is 11110022111.

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-11122001111 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11122001092 and 11122001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122001119) 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, 886820 + ... + 899273.

It is an arithmetic number, because the mean of its divisors is an integer number (1500318960).

Almost surely, 2^11122001111 is an apocalyptic number.

11122001111 is a deficient number, since it is larger than the sum of its proper divisors (880550569).

11122001111 is a wasteful number, since it uses less digits than its factorization.

11122001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786585.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11122001111 its reverse (11110022111), we get a palindrome (22232023222).

The spelling of 11122001111 in words is "eleven billion, one hundred twenty-two million, one thousand, one hundred eleven".