312224440020 has 48 divisors (see below), whose sum is σ = 883241112768. Its totient is φ = 82401500160.

The previous prime is 312224440009. The next prime is 312224440037. The reversal of 312224440020 is 20044422213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26817586 + ... + 26829225.

It is an arithmetic number, because the mean of its divisors is an integer number (18400856516).

Almost surely, 2^312224440020 is an apocalyptic number.

312224440020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312224440020 is an abundant number, since it is smaller than the sum of its proper divisors (571016672748).

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

312224440020 is a wasteful number, since it uses less digits than its factorization.

312224440020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53646920 (or 53646918 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 312224440020 its reverse (20044422213), we get a palindrome (332268862233).

The spelling of 312224440020 in words is "three hundred twelve billion, two hundred twenty-four million, four hundred forty thousand, twenty".