312212322430222 has 8 divisors (see below), whose sum is σ = 488680156847376. Its totient is φ = 149318936814432.

The previous prime is 312212322430219. The next prime is 312212322430223. The reversal of 312212322430222 is 222034223212213.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312212322430223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3393612200283 + ... + 3393612200374.

It is an arithmetic number, because the mean of its divisors is an integer number (61085019605922).

Almost surely, 2^{312212322430222} is an apocalyptic number.

312212322430222 is a deficient number, since it is larger than the sum of its proper divisors (176467834417154).

312212322430222 is a wasteful number, since it uses less digits than its factorization.

312212322430222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787224400682.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 312212322430222 its reverse (222034223212213), we get a palindrome (534246545642435).

The spelling of 312212322430222 in words is "three hundred twelve trillion, two hundred twelve billion, three hundred twenty-two million, four hundred thirty thousand, two hundred twenty-two".