312122210386 has 32 divisors (see below), whose sum is σ = 536797071360. Its totient is φ = 133334330256.

The previous prime is 312122210381. The next prime is 312122210423. The reversal of 312122210386 is 683012221213.

It is not an unprimeable number, because it can be changed into a prime (312122210381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16230685 + ... + 16249903.

It is an arithmetic number, because the mean of its divisors is an integer number (16774908480).

Almost surely, 2^312122210386 is an apocalyptic number.

312122210386 is a deficient number, since it is larger than the sum of its proper divisors (224674860974).

312122210386 is a wasteful number, since it uses less digits than its factorization.

312122210386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22918.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 312122210386 its reverse (683012221213), we get a palindrome (995134431599).

The spelling of 312122210386 in words is "three hundred twelve billion, one hundred twenty-two million, two hundred ten thousand, three hundred eighty-six".