33022323221 has 4 divisors (see below), whose sum is σ = 33563672844. Its totient is φ = 32480973600.

The previous prime is 33022323203. The next prime is 33022323293. The reversal of 33022323221 is 12232322033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12232322033 = 457 ⋅26766569.

It can be written as a sum of positive squares in 2 ways, for example, as 2821096996 + 30201226225 = 53114^2 + 173785^2 .

It is a cyclic number.

It is not a de Polignac number, because 33022323221 - 2⁶ = 33022323157 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 (33022323121) 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, 270674720 + ... + 270674841.

It is an arithmetic number, because the mean of its divisors is an integer number (8390918211).

Almost surely, 2^33022323221 is an apocalyptic number.

It is an amenable number.

33022323221 is a deficient number, since it is larger than the sum of its proper divisors (541349623).

33022323221 is an equidigital number, since it uses as much as digits as its factorization.

33022323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541349622.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 33022323221 its reverse (12232322033), we get a palindrome (45254645254).

The spelling of 33022323221 in words is "thirty-three billion, twenty-two million, three hundred twenty-three thousand, two hundred twenty-one".