322040221 has 4 divisors (see below), whose sum is σ = 322086112. Its totient is φ = 321994332.

The previous prime is 322040219. The next prime is 322040239. The reversal of 322040221 is 122040223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122040223 = 6323 ⋅19301.

It is a cyclic number.

It is not a de Polignac number, because 322040221 - 2¹ = 322040219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 322040195 and 322040204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322040021) 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, 9975 + ... + 27268.

It is an arithmetic number, because the mean of its divisors is an integer number (80521528).

Almost surely, 2^322040221 is an apocalyptic number.

It is an amenable number.

322040221 is a deficient number, since it is larger than the sum of its proper divisors (45891).

322040221 is an equidigital number, since it uses as much as digits as its factorization.

322040221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45890.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 322040221 is about 17945.4791242809. The cubic root of 322040221 is about 685.4409372686.

Adding to 322040221 its reverse (122040223), we get a palindrome (444080444).

The spelling of 322040221 in words is "three hundred twenty-two million, forty thousand, two hundred twenty-one".