3224020221 has 12 divisors (see below), whose sum is σ = 4668037920. Its totient is φ = 2144214600.

The previous prime is 3224020213. The next prime is 3224020231. The reversal of 3224020221 is 1220204223.

It is not a de Polignac number, because 3224020221 - 2³ = 3224020213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3224020194 and 3224020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3224020231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423705 + ... + 431246.

It is an arithmetic number, because the mean of its divisors is an integer number (389003160).

Almost surely, 2^3224020221 is an apocalyptic number.

It is an amenable number.

3224020221 is a deficient number, since it is larger than the sum of its proper divisors (1444017699).

3224020221 is a wasteful number, since it uses less digits than its factorization.

3224020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855376 (or 855373 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 3224020221 is about 56780.4563296210. The cubic root of 3224020221 is about 1477.2905475807.

Adding to 3224020221 its reverse (1220204223), we get a palindrome (4444224444).

The spelling of 3224020221 in words is "three billion, two hundred twenty-four million, twenty thousand, two hundred twenty-one".