224222440420 has 72 divisors (see below), whose sum is σ = 517821663744. Its totient is φ = 81494952000.

The previous prime is 224222440373. The next prime is 224222440427. The reversal of 224222440420 is 24044222422.

It is not an unprimeable number, because it can be changed into a prime (224222440427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5086675 + ... + 5130565.

It is an arithmetic number, because the mean of its divisors is an integer number (7191967552).

Almost surely, 2^224222440420 is an apocalyptic number.

224222440420 is a gapful number since it is divisible by the number (20) 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 224222440420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258910831872).

224222440420 is an abundant number, since it is smaller than the sum of its proper divisors (293599223324).

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

224222440420 is a wasteful number, since it uses less digits than its factorization.

224222440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46033 (or 46020 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 224222440420 its reverse (24044222422), we get a palindrome (248266662842).

The spelling of 224222440420 in words is "two hundred twenty-four billion, two hundred twenty-two million, four hundred forty thousand, four hundred twenty".