312022022212 has 6 divisors (see below), whose sum is σ = 546038538878. Its totient is φ = 156011011104.

The previous prime is 312022022203. The next prime is 312022022227. The reversal of 312022022212 is 212220220213.

It can be written as a sum of positive squares in only one way, i.e., 231674718276 + 80347303936 = 481326^2 + 283456^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 312022022212.

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 as a sum of consecutive naturals, namely, 39002752773 + ... + 39002752780.

Almost surely, 2^312022022212 is an apocalyptic number.

It is an amenable number.

312022022212 is a deficient number, since it is larger than the sum of its proper divisors (234016516666).

312022022212 is a wasteful number, since it uses less digits than its factorization.

312022022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78005505557 (or 78005505555 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 312022022212 its reverse (212220220213), we get a palindrome (524242242425).

The spelling of 312022022212 in words is "three hundred twelve billion, twenty-two million, twenty-two thousand, two hundred twelve".