312240422220 has 96 divisors (see below), whose sum is σ = 929221590528. Its totient is φ = 78068186112.

The previous prime is 312240422149. The next prime is 312240422269. The reversal of 312240422220 is 22224042213.

It is a super-3 number, since 3×312240422220³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313714 + ... + 850233.

It is an arithmetic number, because the mean of its divisors is an integer number (9679391568).

Almost surely, 2^312240422220 is an apocalyptic number.

312240422220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312240422220 is an abundant number, since it is smaller than the sum of its proper divisors (616981168308).

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

312240422220 is a wasteful number, since it uses less digits than its factorization.

312240422220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164239 (or 1164237 counting only the distinct ones).

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

Adding to 312240422220 its reverse (22224042213), we get a palindrome (334464464433).

The spelling of 312240422220 in words is "three hundred twelve billion, two hundred forty million, four hundred twenty-two thousand, two hundred twenty".