11240021121 has 32 divisors (see below), whose sum is σ = 19089653760. Its totient is φ = 5726889216.

The previous prime is 11240021119. The next prime is 11240021123. The reversal of 11240021121 is 12112004211.

11240021121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11240021119) and next prime (11240021123).

It is not a de Polignac number, because 11240021121 - 2¹ = 11240021119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11240021121.

It is not an unprimeable number, because it can be changed into a prime (11240021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 821761 + ... + 835326.

It is an arithmetic number, because the mean of its divisors is an integer number (596551680).

Almost surely, 2^11240021121 is an apocalyptic number.

It is an amenable number.

11240021121 is a deficient number, since it is larger than the sum of its proper divisors (7849632639).

11240021121 is a wasteful number, since it uses less digits than its factorization.

11240021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657133.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11240021121 its reverse (12112004211), we get a palindrome (23352025332).

The spelling of 11240021121 in words is "eleven billion, two hundred forty million, twenty-one thousand, one hundred twenty-one".