11221041040 has 80 divisors (see below), whose sum is σ = 28479087936. Its totient is φ = 4077734400.

The previous prime is 11221041031. The next prime is 11221041107. The reversal of 11221041040 is 4014012211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1803535 + ... + 1809745.

Almost surely, 2^11221041040 is an apocalyptic number.

11221041040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11221041040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14239543968).

11221041040 is an abundant number, since it is smaller than the sum of its proper divisors (17258046896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221041040 is a wasteful number, since it uses less digits than its factorization.

11221041040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8288 (or 8282 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11221041040 its reverse (4014012211), we get a palindrome (15235053251).

The spelling of 11221041040 in words is "eleven billion, two hundred twenty-one million, forty-one thousand, forty".