11121081 has 8 divisors (see below), whose sum is σ = 14844000. Its totient is φ = 7406112.

The previous prime is 11121041. The next prime is 11121083. The reversal of 11121081 is 18012111.

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

It is not a de Polignac number, because 11121081 - 2¹¹ = 11119033 is a prime.

It is a super-2 number, since 2×11121081² = 247356885217122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11121081.

It is not an unprimeable number, because it can be changed into a prime (11121083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3261 + ... + 5733.

It is an arithmetic number, because the mean of its divisors is an integer number (1855500).

Almost surely, 2^11121081 is an apocalyptic number.

It is an amenable number.

11121081 is a deficient number, since it is larger than the sum of its proper divisors (3722919).

11121081 is a wasteful number, since it uses less digits than its factorization.

11121081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3975.

The product of its (nonzero) digits is 16, while the sum is 15.

The square root of 11121081 is about 3334.8284813465. The cubic root of 11121081 is about 223.2110384631.

Adding to 11121081 its reverse (18012111), we get a palindrome (29133192).

The spelling of 11121081 in words is "eleven million, one hundred twenty-one thousand, eighty-one".