255216122 has 8 divisors (see below), whose sum is σ = 437513376. Its totient is φ = 109378332.

The previous prime is 255216083. The next prime is 255216127. The reversal of 255216122 is 221612552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 255216091 and 255216100.

It is not an unprimeable number, because it can be changed into a prime (255216127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9114848 + ... + 9114875.

It is an arithmetic number, because the mean of its divisors is an integer number (54689172).

Almost surely, 2^255216122 is an apocalyptic number.

255216122 is a deficient number, since it is larger than the sum of its proper divisors (182297254).

255216122 is a wasteful number, since it uses less digits than its factorization.

255216122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18229732.

The product of its digits is 2400, while the sum is 26.

The square root of 255216122 is about 15975.4850317604. The cubic root of 255216122 is about 634.3116702762.

Adding to 255216122 its reverse (221612552), we get a palindrome (476828674).

The spelling of 255216122 in words is "two hundred fifty-five million, two hundred sixteen thousand, one hundred twenty-two".