312221344121122 has 16 divisors (see below), whose sum is σ = 478313426805120. Its totient is φ = 152783769903408.

The previous prime is 312221344121119. The next prime is 312221344121123. The reversal of 312221344121122 is 221121443122213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (312221344121123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56004108 + ... + 61326199.

It is an arithmetic number, because the mean of its divisors is an integer number (29894589175320).

Almost surely, 2^{312221344121122} is an apocalyptic number.

312221344121122 is a deficient number, since it is larger than the sum of its proper divisors (166092082683998).

312221344121122 is a wasteful number, since it uses less digits than its factorization.

312221344121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117358665.

The product of its digits is 9216, while the sum is 31.

Adding to 312221344121122 its reverse (221121443122213), we get a palindrome (533342787243335).

The spelling of 312221344121122 in words is "three hundred twelve trillion, two hundred twenty-one billion, three hundred forty-four million, one hundred twenty-one thousand, one hundred twenty-two".