312220112 has 20 divisors (see below), whose sum is σ = 606586176. Its totient is φ = 155681760.

The previous prime is 312220063. The next prime is 312220121. The reversal of 312220112 is 211022213.

It is a happy number.

It is a super-3 number, since 3×312220112³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20714 + ... + 32457.

Almost surely, 2^312220112 is an apocalyptic number.

It is an amenable number.

312220112 is a deficient number, since it is larger than the sum of its proper divisors (294366064).

312220112 is a wasteful number, since it uses less digits than its factorization.

312220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53546 (or 53540 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 312220112 is about 17669.7513281880. The cubic root of 312220112 is about 678.4017481895.

Adding to 312220112 its reverse (211022213), we get a palindrome (523242325).

It can be divided in two parts, 3122201 and 12, that added together give a palindrome (3122213).

The spelling of 312220112 in words is "three hundred twelve million, two hundred twenty thousand, one hundred twelve".