224121240420 has 192 divisors, whose sum is σ = 782786543616. Its totient is φ = 46546859520.

The previous prime is 224121240391. The next prime is 224121240463. The reversal of 224121240420 is 24042121422.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9889342 + ... + 9911978.

It is an arithmetic number, because the mean of its divisors is an integer number (4077013248).

Almost surely, 2^224121240420 is an apocalyptic number.

224121240420 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 224121240420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391393271808).

224121240420 is an abundant number, since it is smaller than the sum of its proper divisors (558665303196).

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

224121240420 is a wasteful number, since it uses less digits than its factorization.

224121240420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24810 (or 24808 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 224121240420 its reverse (24042121422), we get a palindrome (248163361842).

The spelling of 224121240420 in words is "two hundred twenty-four billion, one hundred twenty-one million, two hundred forty thousand, four hundred twenty".