224245403220 has 48 divisors (see below), whose sum is σ = 655186573440. Its totient is φ = 57198827136.

The previous prime is 224245403191. The next prime is 224245403251. The reversal of 224245403220 is 22304542422.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 81246955 + ... + 81249714.

It is an arithmetic number, because the mean of its divisors is an integer number (13649720280).

Almost surely, 2^224245403220 is an apocalyptic number.

224245403220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224245403220 is an abundant number, since it is smaller than the sum of its proper divisors (430941170220).

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

224245403220 is a wasteful number, since it uses less digits than its factorization.

224245403220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162496704 (or 162496702 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 224245403220 its reverse (22304542422), we get a palindrome (246549945642).

The spelling of 224245403220 in words is "two hundred twenty-four billion, two hundred forty-five million, four hundred three thousand, two hundred twenty".