23332332221 has 16 divisors (see below), whose sum is σ = 26565660288. Its totient is φ = 20284756800.

The previous prime is 23332332181. The next prime is 23332332229. The reversal of 23332332221 is 12223323332.

It is not a de Polignac number, because 23332332221 - 2¹⁸ = 23332070077 is a prime.

It is a super-2 number, since 2×23332332221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23332332229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2342111 + ... + 2352051.

It is an arithmetic number, because the mean of its divisors is an integer number (1660353768).

Almost surely, 2^23332332221 is an apocalyptic number.

It is an amenable number.

23332332221 is a deficient number, since it is larger than the sum of its proper divisors (3233328067).

23332332221 is a wasteful number, since it uses less digits than its factorization.

23332332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19252.

The product of its digits is 7776, while the sum is 26.

Adding to 23332332221 its reverse (12223323332), we get a palindrome (35555655553).

It can be divided in two parts, 23332 and 332221, that added together give a palindrome (355553).

The spelling of 23332332221 in words is "twenty-three billion, three hundred thirty-two million, three hundred thirty-two thousand, two hundred twenty-one".