312223220330 has 64 divisors (see below), whose sum is σ = 676608768000. Its totient is φ = 101336401728.

The previous prime is 312223220317. The next prime is 312223220357. The reversal of 312223220330 is 33022322213.

It is a junction number, because it is equal to n+sod(n) for n = 312223220296 and 312223220305.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1665281 + ... + 1843259.

It is an arithmetic number, because the mean of its divisors is an integer number (10572012000).

Almost surely, 2^312223220330 is an apocalyptic number.

312223220330 is an abundant number, since it is smaller than the sum of its proper divisors (364385547670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312223220330 is a wasteful number, since it uses less digits than its factorization.

312223220330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179331.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 312223220330 its reverse (33022322213), we get a palindrome (345245542543).

The spelling of 312223220330 in words is "three hundred twelve billion, two hundred twenty-three million, two hundred twenty thousand, three hundred thirty".