305223122 has 8 divisors (see below), whose sum is σ = 461176956. Its totient is φ = 151497472.

The previous prime is 305223119. The next prime is 305223137. The reversal of 305223122 is 221322503.

It can be written as a sum of positive squares in 2 ways, for example, as 299601481 + 5621641 = 17309^2 + 2371^2 .

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

It is a super-2 number, since 2×305223122² = 186322308406853768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 305223094 and 305223103.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 556703 + ... + 557250.

Almost surely, 2^305223122 is an apocalyptic number.

305223122 is a deficient number, since it is larger than the sum of its proper divisors (155953834).

305223122 is a wasteful number, since it uses less digits than its factorization.

305223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114092.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 305223122 is about 17470.6359930027. The cubic root of 305223122 is about 673.2956522934.

Adding to 305223122 its reverse (221322503), we get a palindrome (526545625).

The spelling of 305223122 in words is "three hundred five million, two hundred twenty-three thousand, one hundred twenty-two".