312221001122 has 8 divisors (see below), whose sum is σ = 484480863900. Its totient is φ = 150727379824.

The previous prime is 312221001061. The next prime is 312221001133. The reversal of 312221001122 is 221100122213.

It can be written as a sum of positive squares in 2 ways, for example, as 283619088481 + 28601912641 = 532559^2 + 169121^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 312221001122.

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 3 ways as a sum of consecutive naturals, for example, 2691560297 + ... + 2691560412.

Almost surely, 2^312221001122 is an apocalyptic number.

312221001122 is a deficient number, since it is larger than the sum of its proper divisors (172259862778).

312221001122 is a wasteful number, since it uses less digits than its factorization.

312221001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5383120740.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 312221001122 its reverse (221100122213), we get a palindrome (533321123335).

The spelling of 312221001122 in words is "three hundred twelve billion, two hundred twenty-one million, one thousand, one hundred twenty-two".