312130222 has 8 divisors (see below), whose sum is σ = 468514656. Its totient is φ = 155958672.

The previous prime is 312130211. The next prime is 312130223. The reversal of 312130222 is 222031213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 312130196 and 312130205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130223) 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, 49503 + ... + 55450.

It is an arithmetic number, because the mean of its divisors is an integer number (58564332).

Almost surely, 2^312130222 is an apocalyptic number.

312130222 is a deficient number, since it is larger than the sum of its proper divisors (156384434).

312130222 is a wasteful number, since it uses less digits than its factorization.

312130222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106442.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 312130222 is about 17667.2075326012. The cubic root of 312130222 is about 678.3366366608.

Adding to 312130222 its reverse (222031213), we get a palindrome (534161435).

Subtracting from 312130222 its reverse (222031213), we obtain a palindrome (90099009).

The spelling of 312130222 in words is "three hundred twelve million, one hundred thirty thousand, two hundred twenty-two".