3223421221 has 4 divisors (see below), whose sum is σ = 3413034252. Its totient is φ = 3033808192.

The previous prime is 3223421219. The next prime is 3223421233. The reversal of 3223421221 is 1221243223.

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 2685830625 + 537590596 = 51825^2 + 23186^2 .

It is a cyclic number.

It is not a de Polignac number, because 3223421221 - 2¹ = 3223421219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3223421192 and 3223421201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223421321) 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, 94806490 + ... + 94806523.

It is an arithmetic number, because the mean of its divisors is an integer number (853258563).

Almost surely, 2^3223421221 is an apocalyptic number.

It is an amenable number.

3223421221 is a deficient number, since it is larger than the sum of its proper divisors (189613031).

3223421221 is a wasteful number, since it uses less digits than its factorization.

3223421221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189613030.

The product of its digits is 1152, while the sum is 22.

The square root of 3223421221 is about 56775.1813823611. The cubic root of 3223421221 is about 1477.1990518926.

Adding to 3223421221 its reverse (1221243223), we get a palindrome (4444664444).

The spelling of 3223421221 in words is "three billion, two hundred twenty-three million, four hundred twenty-one thousand, two hundred twenty-one".