312132333222 has 96 divisors (see below), whose sum is σ = 751842540000. Its totient is φ = 95903880768.

The previous prime is 312132333221. The next prime is 312132333229. The reversal of 312132333222 is 222333231213.

312132333222 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 323 + 332 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312132333221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 504904 + ... + 937652.

It is an arithmetic number, because the mean of its divisors is an integer number (7831693125).

Almost surely, 2^312132333222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312132333222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375921270000).

312132333222 is an abundant number, since it is smaller than the sum of its proper divisors (439710206778).

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

312132333222 is a wasteful number, since it uses less digits than its factorization.

312132333222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432835 (or 432810 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 312132333222 its reverse (222333231213), we get a palindrome (534465564435).

The spelling of 312132333222 in words is "three hundred twelve billion, one hundred thirty-two million, three hundred thirty-three thousand, two hundred twenty-two".