221002110123321 has 8 divisors (see below), whose sum is σ = 302633520169024. Its totient is φ = 143352720079920.

The previous prime is 221002110123313. The next prime is 221002110123331. The reversal of 221002110123321 is 123321011200122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221002110123321 - 2³ = 221002110123313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002110123331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995505000445 + ... + 995505000666.

It is an arithmetic number, because the mean of its divisors is an integer number (37829190021128).

Almost surely, 2^{221002110123321} is an apocalyptic number.

It is an amenable number.

221002110123321 is a deficient number, since it is larger than the sum of its proper divisors (81631410045703).

221002110123321 is a wasteful number, since it uses less digits than its factorization.

221002110123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991010001151.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 221002110123321 its reverse (123321011200122), we get a palindrome (344323121323443).

The spelling of 221002110123321 in words is "two hundred twenty-one trillion, two billion, one hundred ten million, one hundred twenty-three thousand, three hundred twenty-one".