312221102223 has 8 divisors (see below), whose sum is σ = 422158110336. Its totient is φ = 205215747800.

The previous prime is 312221102209. The next prime is 312221102227. The reversal of 312221102223 is 322201122213.

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

It is a cyclic number.

It is not a de Polignac number, because 312221102223 - 2⁶ = 312221102159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312221102223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312221102227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732913173 + ... + 732913598.

It is an arithmetic number, because the mean of its divisors is an integer number (52769763792).

Almost surely, 2^312221102223 is an apocalyptic number.

312221102223 is a deficient number, since it is larger than the sum of its proper divisors (109937008113).

312221102223 is a wasteful number, since it uses less digits than its factorization.

312221102223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465826845.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 312221102223 its reverse (322201122213), we get a palindrome (634422224436).

The spelling of 312221102223 in words is "three hundred twelve billion, two hundred twenty-one million, one hundred two thousand, two hundred twenty-three".