312222220232 has 32 divisors (see below), whose sum is σ = 630495465600. Its totient is φ = 144091877184.

The previous prime is 312222220217. The next prime is 312222220309. The reversal of 312222220232 is 232022222213.

It is a junction number, because it is equal to n+sod(n) for n = 312222220198 and 312222220207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1395473 + ... + 1603679.

It is an arithmetic number, because the mean of its divisors is an integer number (19702983300).

Almost surely, 2^312222220232 is an apocalyptic number.

It is an amenable number.

312222220232 is an abundant number, since it is smaller than the sum of its proper divisors (318273245368).

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

312222220232 is a wasteful number, since it uses less digits than its factorization.

312222220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222645 (or 222641 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 312222220232 its reverse (232022222213), we get a palindrome (544244442445).

The spelling of 312222220232 in words is "three hundred twelve billion, two hundred twenty-two million, two hundred twenty thousand, two hundred thirty-two".