23331322232221 has 4 divisors (see below), whose sum is σ = 23501623854492. Its totient is φ = 23161020609952.

The previous prime is 23331322232161. The next prime is 23331322232263. The reversal of 23331322232221 is 12223222313332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18665769752100 + 4665552480121 = 4320390^2 + 2159989^2 .

It is a cyclic number.

It is not a de Polignac number, because 23331322232221 - 2¹⁷ = 23331322101149 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 (23331322232821) 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, 85150810930 + ... + 85150811203.

It is an arithmetic number, because the mean of its divisors is an integer number (5875405963623).

Almost surely, 2^{23331322232221} is an apocalyptic number.

It is an amenable number.

23331322232221 is a deficient number, since it is larger than the sum of its proper divisors (170301622271).

23331322232221 is a wasteful number, since it uses less digits than its factorization.

23331322232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170301622270.

The product of its digits is 31104, while the sum is 31.

Adding to 23331322232221 its reverse (12223222313332), we get a palindrome (35554544545553).

The spelling of 23331322232221 in words is "twenty-three trillion, three hundred thirty-one billion, three hundred twenty-two million, two hundred thirty-two thousand, two hundred twenty-one".