23221210032321 has 32 divisors (see below), whose sum is σ = 38025350369280. Its totient is φ = 12302319211776.

The previous prime is 23221210032313. The next prime is 23221210032331. The reversal of 23221210032321 is 12323001212232.

It is not a de Polignac number, because 23221210032321 - 2³ = 23221210032313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23221210032291 and 23221210032300.

It is not an unprimeable number, because it can be changed into a prime (23221210032331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485389561 + ... + 485437398.

It is an arithmetic number, because the mean of its divisors is an integer number (1188292199040).

Almost surely, 2^{23221210032321} is an apocalyptic number.

23221210032321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23221210032321 is a deficient number, since it is larger than the sum of its proper divisors (14804140336959).

23221210032321 is a wasteful number, since it uses less digits than its factorization.

23221210032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970827053.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23221210032321 its reverse (12323001212232), we get a palindrome (35544211244553).

The spelling of 23221210032321 in words is "twenty-three trillion, two hundred twenty-one billion, two hundred ten million, thirty-two thousand, three hundred twenty-one".