312223211322 has 32 divisors (see below), whose sum is σ = 683363265984. Its totient is φ = 94314624000.

The previous prime is 312223211317. The next prime is 312223211351. The reversal of 312223211322 is 223112322213.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 312223211292 and 312223211301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7440679 + ... + 7482522.

It is an arithmetic number, because the mean of its divisors is an integer number (21355102062).

Almost surely, 2^312223211322 is an apocalyptic number.

312223211322 is an abundant number, since it is smaller than the sum of its proper divisors (371140054662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312223211322 is a wasteful number, since it uses less digits than its factorization.

312223211322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14923534.

The product of its digits is 1728, while the sum is 24.

Adding to 312223211322 its reverse (223112322213), we get a palindrome (535335533535).

The spelling of 312223211322 in words is "three hundred twelve billion, two hundred twenty-three million, two hundred eleven thousand, three hundred twenty-two".