123222285 has 12 divisors (see below), whose sum is σ = 213585372. Its totient is φ = 65718528.

The previous prime is 123222269. The next prime is 123222287. The reversal of 123222285 is 582222321.

It can be written as a sum of positive squares in 2 ways, for example, as 14791716 + 108430569 = 3846^2 + 10413^2 .

It is not a de Polignac number, because 123222285 - 2⁴ = 123222269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123222287) 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 11 ways as a sum of consecutive naturals, for example, 1369092 + ... + 1369181.

It is an arithmetic number, because the mean of its divisors is an integer number (17798781).

Almost surely, 2^123222285 is an apocalyptic number.

123222285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123222285 is a deficient number, since it is larger than the sum of its proper divisors (90363087).

123222285 is a wasteful number, since it uses less digits than its factorization.

123222285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738284 (or 2738281 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 123222285 is about 11100.5533645850. The cubic root of 123222285 is about 497.6183871857.

The spelling of 123222285 in words is "one hundred twenty-three million, two hundred twenty-two thousand, two hundred eighty-five".