312101112122 has 16 divisors (see below), whose sum is σ = 477524829600. Its totient is φ = 152942151120.

The previous prime is 312101112119. The next prime is 312101112143. The reversal of 312101112122 is 221211101213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312101112122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3956297 + ... + 4034412.

It is an arithmetic number, because the mean of its divisors is an integer number (29845301850).

Almost surely, 2^312101112122 is an apocalyptic number.

312101112122 is a deficient number, since it is larger than the sum of its proper divisors (165423717478).

312101112122 is a wasteful number, since it uses less digits than its factorization.

312101112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991101.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 312101112122 its reverse (221211101213), we get a palindrome (533312213335).

The spelling of 312101112122 in words is "three hundred twelve billion, one hundred one million, one hundred twelve thousand, one hundred twenty-two".