11121244111 has 8 divisors (see below), whose sum is σ = 11404605600. Its totient is φ = 10841402880.

The previous prime is 11121244109. The next prime is 11121244159. The reversal of 11121244111 is 11144212111.

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

It is a cyclic number.

It is not a de Polignac number, because 11121244111 - 2¹ = 11121244109 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 (11121244411) 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, 873666 + ... + 886303.

It is an arithmetic number, because the mean of its divisors is an integer number (1425575700).

Almost surely, 2^11121244111 is an apocalyptic number.

11121244111 is a deficient number, since it is larger than the sum of its proper divisors (283361489).

11121244111 is an equidigital number, since it uses as much as digits as its factorization.

11121244111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760129.

The product of its digits is 64, while the sum is 19.

Adding to 11121244111 its reverse (11144212111), we get a palindrome (22265456222).

The spelling of 11121244111 in words is "eleven billion, one hundred twenty-one million, two hundred forty-four thousand, one hundred eleven".