312001122 has 32 divisors (see below), whose sum is σ = 634296960. Its totient is φ = 102291840.

The previous prime is 312001097. The next prime is 312001127. The reversal of 312001122 is 221100213.

It is a junction number, because it is equal to n+sod(n) for n = 312001098 and 312001107.

It is not an unprimeable number, because it can be changed into a prime (312001127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301518 + ... + 302550.

It is an arithmetic number, because the mean of its divisors is an integer number (19821780).

Almost surely, 2^312001122 is an apocalyptic number.

312001122 is an abundant number, since it is smaller than the sum of its proper divisors (322295838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312001122 is a wasteful number, since it uses less digits than its factorization.

312001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 312001122 is about 17663.5534929979. The cubic root of 312001122 is about 678.2431016231.

Adding to 312001122 its reverse (221100213), we get a palindrome (533101335).

Subtracting from 312001122 its reverse (221100213), we obtain a palindrome (90900909).

The spelling of 312001122 in words is "three hundred twelve million, one thousand, one hundred twenty-two".