312202212212 has 36 divisors (see below), whose sum is σ = 606483739428. Its totient is φ = 140505024000.

The previous prime is 312202212151. The next prime is 312202212241. The reversal of 312202212212 is 212212202213.

It can be written as a sum of positive squares in 2 ways, for example, as 270323045476 + 41879166736 = 519926^2 + 204644^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3144413 + ... + 3242180.

Almost surely, 2^312202212212 is an apocalyptic number.

It is an amenable number.

312202212212 is a deficient number, since it is larger than the sum of its proper divisors (294281527216).

312202212212 is a wasteful number, since it uses less digits than its factorization.

312202212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386720 (or 6386707 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 312202212212 its reverse (212212202213), we get a palindrome (524414414425).

Subtracting from 312202212212 its reverse (212212202213), we obtain a palindrome (99990009999).

The spelling of 312202212212 in words is "three hundred twelve billion, two hundred two million, two hundred twelve thousand, two hundred twelve".