10321331221221 has 16 divisors (see below), whose sum is σ = 13783557924864. Its totient is φ = 6869996592624.

The previous prime is 10321331221207. The next prime is 10321331221249. The reversal of 10321331221221 is 12212213312301.

It is not a de Polignac number, because 10321331221221 - 2⁷ = 10321331221093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10321331221191 and 10321331221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321331229221) 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, 122733030 + ... + 122817096.

It is an arithmetic number, because the mean of its divisors is an integer number (861472370304).

Almost surely, 2^{10321331221221} is an apocalyptic number.

It is an amenable number.

10321331221221 is a deficient number, since it is larger than the sum of its proper divisors (3462226703643).

10321331221221 is an equidigital number, since it uses as much as digits as its factorization.

10321331221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148360.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 10321331221221 its reverse (12212213312301), we get a palindrome (22533544533522).

The spelling of 10321331221221 in words is "ten trillion, three hundred twenty-one billion, three hundred thirty-one million, two hundred twenty-one thousand, two hundred twenty-one".