222021320312 has 64 divisors (see below), whose sum is σ = 478142179200. Its totient is φ = 95586099840.

The previous prime is 222021320267. The next prime is 222021320321. The reversal of 222021320312 is 213023120222.

It is a happy number.

222021320312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9306143 + ... + 9329969.

It is an arithmetic number, because the mean of its divisors is an integer number (7470971550).

Almost surely, 2^222021320312 is an apocalyptic number.

222021320312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222021320312 is an abundant number, since it is smaller than the sum of its proper divisors (256120858888).

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

222021320312 is a wasteful number, since it uses less digits than its factorization.

222021320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29436 (or 29432 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222021320312 its reverse (213023120222), we get a palindrome (435044440534).

The spelling of 222021320312 in words is "two hundred twenty-two billion, twenty-one million, three hundred twenty thousand, three hundred twelve".