222023201 has 4 divisors (see below), whose sum is σ = 226212372. Its totient is φ = 217834032.

The previous prime is 222023173. The next prime is 222023239. The reversal of 222023201 is 102320222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107019025 + 115004176 = 10345^2 + 10724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222023201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222023251) 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, 2094506 + ... + 2094611.

It is an arithmetic number, because the mean of its divisors is an integer number (56553093).

Almost surely, 2^222023201 is an apocalyptic number.

It is an amenable number.

222023201 is a deficient number, since it is larger than the sum of its proper divisors (4189171).

222023201 is an equidigital number, since it uses as much as digits as its factorization.

222023201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4189170.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 222023201 is about 14900.4429799922. The cubic root of 222023201 is about 605.5259874885.

Adding to 222023201 its reverse (102320222), we get a palindrome (324343423).

The spelling of 222023201 in words is "two hundred twenty-two million, twenty-three thousand, two hundred one".