312122130220 has 12 divisors (see below), whose sum is σ = 655456473504. Its totient is φ = 124848852080.

The previous prime is 312122130217. The next prime is 312122130293. The reversal of 312122130220 is 22031221213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7803053236 + ... + 7803053275.

It is an arithmetic number, because the mean of its divisors is an integer number (54621372792).

Almost surely, 2^312122130220 is an apocalyptic number.

It is an amenable number.

312122130220 is an abundant number, since it is smaller than the sum of its proper divisors (343334343284).

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

312122130220 is a wasteful number, since it uses less digits than its factorization.

312122130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15606106520 (or 15606106518 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 312122130220 its reverse (22031221213), we get a palindrome (334153351433).

The spelling of 312122130220 in words is "three hundred twelve billion, one hundred twenty-two million, one hundred thirty thousand, two hundred twenty".