222945285 has 32 divisors (see below), whose sum is σ = 365500800. Its totient is φ = 116011008.

The previous prime is 222945277. The next prime is 222945287. The reversal of 222945285 is 582549222.

It is not a de Polignac number, because 222945285 - 2³ = 222945277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222945287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105166 + ... + 107264.

It is an arithmetic number, because the mean of its divisors is an integer number (11421900).

Almost surely, 2^222945285 is an apocalyptic number.

It is an amenable number.

222945285 is a deficient number, since it is larger than the sum of its proper divisors (142555515).

222945285 is a wasteful number, since it uses less digits than its factorization.

222945285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277.

The product of its digits is 115200, while the sum is 39.

The square root of 222945285 is about 14931.3524169782. The cubic root of 222945285 is about 606.3630991743.

The spelling of 222945285 in words is "two hundred twenty-two million, nine hundred forty-five thousand, two hundred eighty-five".