23224324431221 has 4 divisors (see below), whose sum is σ = 23226115477152. Its totient is φ = 23222533385292.

The previous prime is 23224324431157. The next prime is 23224324431223. The reversal of 23224324431221 is 12213442342232.

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 23224324431221 - 2⁶ = 23224324431157 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 (23224324431223) 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, 895503515 + ... + 895529448.

It is an arithmetic number, because the mean of its divisors is an integer number (5806528869288).

Almost surely, 2^{23224324431221} is an apocalyptic number.

It is an amenable number.

23224324431221 is a deficient number, since it is larger than the sum of its proper divisors (1791045931).

23224324431221 is a wasteful number, since it uses less digits than its factorization.

23224324431221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791045930.

The product of its digits is 110592, while the sum is 35.

Adding to 23224324431221 its reverse (12213442342232), we get a palindrome (35437766773453).

The spelling of 23224324431221 in words is "twenty-three trillion, two hundred twenty-four billion, three hundred twenty-four million, four hundred thirty-one thousand, two hundred twenty-one".