3223002320221 has 4 divisors (see below), whose sum is σ = 3226471645500. Its totient is φ = 3219532994944.

The previous prime is 3223002320207. The next prime is 3223002320287. The reversal of 3223002320221 is 1220232003223.

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 1093825231321 + 2129177088900 = 1045861^2 + 1459170^2 .

It is a cyclic number.

It is not a de Polignac number, because 3223002320221 - 2⁷ = 3223002320093 is a prime.

It is a super-2 number, since 2×3223002320221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3223002320192 and 3223002320201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223002330221) 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, 1734661246 + ... + 1734663103.

It is an arithmetic number, because the mean of its divisors is an integer number (806617911375).

Almost surely, 2^{3223002320221} is an apocalyptic number.

It is an amenable number.

3223002320221 is a deficient number, since it is larger than the sum of its proper divisors (3469325279).

3223002320221 is an equidigital number, since it uses as much as digits as its factorization.

3223002320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469325278.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 3223002320221 its reverse (1220232003223), we get a palindrome (4443234323444).

The spelling of 3223002320221 in words is "three trillion, two hundred twenty-three billion, two million, three hundred twenty thousand, two hundred twenty-one".