11144220000 has 120 divisors (see below), whose sum is σ = 36555467256. Its totient is φ = 2971776000.

The previous prime is 11144219939. The next prime is 11144220011. The reversal of 11144220000 is 2244111.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32869 + ... + 152868.

Almost surely, 2^11144220000 is an apocalyptic number.

11144220000 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 11144220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18277733628).

11144220000 is an abundant number, since it is smaller than the sum of its proper divisors (25411247256).

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

11144220000 is an equidigital number, since it uses as much as digits as its factorization.

11144220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185770 (or 185747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11144220000 its reverse (2244111), we get a palindrome (11146464111).

The spelling of 11144220000 in words is "eleven billion, one hundred forty-four million, two hundred twenty thousand".