204222023 has 4 divisors (see below), whose sum is σ = 204696288. Its totient is φ = 203747760.

The previous prime is 204222001. The next prime is 204222041. The reversal of 204222023 is 320222402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320222402 = 2 ⋅160111201.

It is a cyclic number.

It is not a de Polignac number, because 204222023 - 2¹⁰ = 204220999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204221992 and 204222010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204222043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236486 + ... + 237347.

It is an arithmetic number, because the mean of its divisors is an integer number (51174072).

Almost surely, 2^204222023 is an apocalyptic number.

204222023 is a deficient number, since it is larger than the sum of its proper divisors (474265).

204222023 is an equidigital number, since it uses as much as digits as its factorization.

204222023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474264.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 204222023 is about 14290.6271031050. The cubic root of 204222023 is about 588.8900159083.

Adding to 204222023 its reverse (320222402), we get a palindrome (524444425).

The spelling of 204222023 in words is "two hundred four million, two hundred twenty-two thousand, twenty-three".