3220534421 has 4 divisors (see below), whose sum is σ = 3468267852. Its totient is φ = 2972800992.

The previous prime is 3220534397. The next prime is 3220534433. The reversal of 3220534421 is 1244350223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1244350223 = 19 ⋅65492117.

It can be written as a sum of positive squares in 2 ways, for example, as 716632900 + 2503901521 = 26770^2 + 50039^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220534421 - 2³⁰ = 2146792597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220534721) 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, 123866696 + ... + 123866721.

It is an arithmetic number, because the mean of its divisors is an integer number (867066963).

Almost surely, 2^3220534421 is an apocalyptic number.

It is an amenable number.

3220534421 is a deficient number, since it is larger than the sum of its proper divisors (247733431).

3220534421 is a wasteful number, since it uses less digits than its factorization.

3220534421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247733430.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 3220534421 is about 56749.7526073903. The cubic root of 3220534421 is about 1476.7579416993.

Adding to 3220534421 its reverse (1244350223), we get a palindrome (4464884644).

The spelling of 3220534421 in words is "three billion, two hundred twenty million, five hundred thirty-four thousand, four hundred twenty-one".