224220020 has 24 divisors (see below), whose sum is σ = 471943584. Its totient is φ = 89482016.

The previous prime is 224219999. The next prime is 224220023. The reversal of 224220020 is 20022422.

224220020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 224219977 and 224220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224220023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3794 + ... + 21513.

It is an arithmetic number, because the mean of its divisors is an integer number (19664316).

Almost surely, 2^224220020 is an apocalyptic number.

224220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224220020 is an abundant number, since it is smaller than the sum of its proper divisors (247723564).

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

224220020 is a wasteful number, since it uses less digits than its factorization.

224220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25759 (or 25757 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 224220020 is about 14973.9780953493. The cubic root of 224220020 is about 607.5165716604.

Adding to 224220020 its reverse (20022422), we get a palindrome (244242442).

The spelling of 224220020 in words is "two hundred twenty-four million, two hundred twenty thousand, twenty".