224121433421 has 8 divisors (see below), whose sum is σ = 226149836544. Its totient is φ = 222093820480.

The previous prime is 224121433411. The next prime is 224121433433. The reversal of 224121433421 is 124334121422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224121433421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224121433411) 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, 379886 + ... + 769776.

It is an arithmetic number, because the mean of its divisors is an integer number (28268729568).

Almost surely, 2^224121433421 is an apocalyptic number.

It is an amenable number.

224121433421 is a deficient number, since it is larger than the sum of its proper divisors (2028403123).

224121433421 is a wasteful number, since it uses less digits than its factorization.

224121433421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395091.

The product of its digits is 9216, while the sum is 29.

Adding to 224121433421 its reverse (124334121422), we get a palindrome (348455554843).

The spelling of 224121433421 in words is "two hundred twenty-four billion, one hundred twenty-one million, four hundred thirty-three thousand, four hundred twenty-one".