224124040421 has 4 divisors (see below), whose sum is σ = 224376717792. Its totient is φ = 223871363052.

The previous prime is 224124040397. The next prime is 224124040429. The reversal of 224124040421 is 124040421422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 224124040421 - 2²² = 224119846117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224124040429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126337355 + ... + 126339128.

It is an arithmetic number, because the mean of its divisors is an integer number (56094179448).

Almost surely, 2^224124040421 is an apocalyptic number.

It is an amenable number.

224124040421 is a deficient number, since it is larger than the sum of its proper divisors (252677371).

224124040421 is an equidigital number, since it uses as much as digits as its factorization.

224124040421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252677370.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 224124040421 its reverse (124040421422), we get a palindrome (348164461843).

The spelling of 224124040421 in words is "two hundred twenty-four billion, one hundred twenty-four million, forty thousand, four hundred twenty-one".