222480221 has 2 divisors, whose sum is σ = 222480222. Its totient is φ = 222480220.

The previous prime is 222480197. The next prime is 222480233. The reversal of 222480221 is 122084222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205348900 + 17131321 = 14330^2 + 4139^2 .

It is a cyclic number.

It is not a de Polignac number, because 222480221 - 2⁶ = 222480157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222480121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111240110 + 111240111.

It is an arithmetic number, because the mean of its divisors is an integer number (111240111).

Almost surely, 2^222480221 is an apocalyptic number.

It is an amenable number.

222480221 is a deficient number, since it is larger than the sum of its proper divisors (1).

222480221 is an equidigital number, since it uses as much as digits as its factorization.

222480221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 222480221 is about 14915.7708818552. The cubic root of 222480221 is about 605.9411810666.

The spelling of 222480221 in words is "two hundred twenty-two million, four hundred eighty thousand, two hundred twenty-one".