11222445680 has 80 divisors (see below), whose sum is σ = 26812283904. Its totient is φ = 4366275840.

The previous prime is 11222445679. The next prime is 11222445719. The reversal of 11222445680 is 8654422211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11222445680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603725 + ... + 622035.

Almost surely, 2^11222445680 is an apocalyptic number.

11222445680 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 11222445680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13406141952).

11222445680 is an abundant number, since it is smaller than the sum of its proper divisors (15589838224).

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

11222445680 is a wasteful number, since it uses less digits than its factorization.

11222445680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18534 (or 18528 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

Adding to 11222445680 its reverse (8654422211), we get a palindrome (19876867891).

The spelling of 11222445680 in words is "eleven billion, two hundred twenty-two million, four hundred forty-five thousand, six hundred eighty".