312100222004 has 6 divisors (see below), whose sum is σ = 546175388514. Its totient is φ = 156050111000.

The previous prime is 312100221943. The next prime is 312100222061. The reversal of 312100222004 is 400222001213.

It can be written as a sum of positive squares in only one way, i.e., 158356243600 + 153743978404 = 397940^2 + 392102^2 .

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 as a sum of consecutive naturals, namely, 39012527747 + ... + 39012527754.

It is an arithmetic number, because the mean of its divisors is an integer number (91029231419).

Almost surely, 2^312100222004 is an apocalyptic number.

It is an amenable number.

312100222004 is a deficient number, since it is larger than the sum of its proper divisors (234075166510).

312100222004 is a wasteful number, since it uses less digits than its factorization.

312100222004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78025055505 (or 78025055503 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 312100222004 its reverse (400222001213), we get a palindrome (712322223217).

The spelling of 312100222004 in words is "three hundred twelve billion, one hundred million, two hundred twenty-two thousand, four".