312110221120 has 28 divisors (see below), whose sum is σ = 743212464804. Its totient is φ = 124844088320.

The previous prime is 312110221081. The next prime is 312110221121. The reversal of 312110221120 is 21122011213.

It can be written as a sum of positive squares in 2 ways, for example, as 157075883584 + 155034337536 = 396328^2 + 393744^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 312110221094 and 312110221103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312110221121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487671901 + ... + 487672540.

Almost surely, 2^312110221120 is an apocalyptic number.

It is an amenable number.

312110221120 is an abundant number, since it is smaller than the sum of its proper divisors (431102243684).

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

312110221120 is an equidigital number, since it uses as much as digits as its factorization.

312110221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975344458 (or 975344448 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 312110221120 its reverse (21122011213), we get a palindrome (333232232333).

The spelling of 312110221120 in words is "three hundred twelve billion, one hundred ten million, two hundred twenty-one thousand, one hundred twenty".