312224132420 has 24 divisors (see below), whose sum is σ = 660387739200. Its totient is φ = 123991165152.

The previous prime is 312224132419. The next prime is 312224132459. The reversal of 312224132420 is 24231422213.

It is a self number, because there is not a number n which added to its sum of digits gives 312224132420.

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 7 ways as a sum of consecutive naturals, for example, 56152640 + ... + 56158199.

It is an arithmetic number, because the mean of its divisors is an integer number (27516155800).

Almost surely, 2^312224132420 is an apocalyptic number.

It is an amenable number.

312224132420 is an abundant number, since it is smaller than the sum of its proper divisors (348163606780).

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

312224132420 is a wasteful number, since it uses less digits than its factorization.

312224132420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112310987 (or 112310985 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 312224132420 its reverse (24231422213), we get a palindrome (336455554633).

The spelling of 312224132420 in words is "three hundred twelve billion, two hundred twenty-four million, one hundred thirty-two thousand, four hundred twenty".