322253252221 has 4 divisors (see below), whose sum is σ = 322778951452. Its totient is φ = 321727552992.

The previous prime is 322253252213. The next prime is 322253252257. The reversal of 322253252221 is 122252352223.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122252352223 = 103 ⋅1186916041.

It can be written as a sum of positive squares in 2 ways, for example, as 43268576121 + 278984676100 = 208011^2 + 528190^2 .

It is a cyclic number.

It is not a de Polignac number, because 322253252221 - 2³ = 322253252213 is a prime.

It is a super-2 number, since 2×322253252221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322253252281) 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, 262848696 + ... + 262849921.

It is an arithmetic number, because the mean of its divisors is an integer number (80694737863).

Almost surely, 2^322253252221 is an apocalyptic number.

It is an amenable number.

322253252221 is a deficient number, since it is larger than the sum of its proper divisors (525699231).

322253252221 is an equidigital number, since it uses as much as digits as its factorization.

322253252221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525699230.

The product of its digits is 28800, while the sum is 31.

The spelling of 322253252221 in words is "three hundred twenty-two billion, two hundred fifty-three million, two hundred fifty-two thousand, two hundred twenty-one".