312224212320020 has 96 divisors (see below), whose sum is σ = 880341275632896. Its totient is φ = 89830742400000.

The previous prime is 312224212319963. The next prime is 312224212320023. The reversal of 312224212320020 is 20023212422213.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312224212320023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7797787481 + ... + 7797827520.

It is an arithmetic number, because the mean of its divisors is an integer number (9170221621176).

Almost surely, 2^{312224212320020} is an apocalyptic number.

It is an amenable number.

312224212320020 is an abundant number, since it is smaller than the sum of its proper divisors (568117063312876).

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

312224212320020 is a wasteful number, since it uses less digits than its factorization.

312224212320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15595615041 (or 15595615039 counting only the distinct ones).

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

Adding to 312224212320020 its reverse (20023212422213), we get a palindrome (332247424742233).

The spelling of 312224212320020 in words is "three hundred twelve trillion, two hundred twenty-four billion, two hundred twelve million, three hundred twenty thousand, twenty".