312203122 has 32 divisors (see below), whose sum is σ = 586543104. Its totient is φ = 121078800.

The previous prime is 312203119. The next prime is 312203137. The reversal of 312203122 is 221302213.

It is a junction number, because it is equal to n+sod(n) for n = 312203096 and 312203105.

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 15 ways as a sum of consecutive naturals, for example, 29797 + ... + 38887.

It is an arithmetic number, because the mean of its divisors is an integer number (18329472).

Almost surely, 2^312203122 is an apocalyptic number.

312203122 is a deficient number, since it is larger than the sum of its proper divisors (274339982).

312203122 is a wasteful number, since it uses less digits than its factorization.

312203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9334.

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

The square root of 312203122 is about 17669.2705565340. The cubic root of 312203122 is about 678.3894424963.

Adding to 312203122 its reverse (221302213), we get a palindrome (533505335).

Subtracting from 312203122 its reverse (221302213), we obtain a palindrome (90900909).

The spelling of 312203122 in words is "three hundred twelve million, two hundred three thousand, one hundred twenty-two".