312122280708 has 288 divisors, whose sum is σ = 951071127552. Its totient is φ = 84428697600.

The previous prime is 312122280707. The next prime is 312122280763. The reversal of 312122280708 is 807082221213.

It is a super-2 number, since 2×312122280708² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (312122280707) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 179276718 + ... + 179278458.

It is an arithmetic number, because the mean of its divisors is an integer number (3302330304).

Almost surely, 2^312122280708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312122280708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475535563776).

312122280708 is an abundant number, since it is smaller than the sum of its proper divisors (638948846844).

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

312122280708 is a wasteful number, since it uses less digits than its factorization.

312122280708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275 (or 2270 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 312122280708 in words is "three hundred twelve billion, one hundred twenty-two million, two hundred eighty thousand, seven hundred eight".