312100012222 has 8 divisors (see below), whose sum is σ = 468409962672. Its totient is φ = 155963358000.

The previous prime is 312100012193. The next prime is 312100012229. The reversal of 312100012222 is 222210001213.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 312100012196 and 312100012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312100012229) by changing a digit.

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, 43319554 + ... + 43326757.

It is an arithmetic number, because the mean of its divisors is an integer number (58551245334).

Almost surely, 2^312100012222 is an apocalyptic number.

312100012222 is a deficient number, since it is larger than the sum of its proper divisors (156309950450).

312100012222 is a wasteful number, since it uses less digits than its factorization.

312100012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86648114.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 312100012222 its reverse (222210001213), we get a palindrome (534310013435).

The spelling of 312100012222 in words is "three hundred twelve billion, one hundred million, twelve thousand, two hundred twenty-two".