222312030012 has 144 divisors (see below), whose sum is σ = 606777181920. Its totient is φ = 68368195584.

The previous prime is 222312029993. The next prime is 222312030023. The reversal of 222312030012 is 210030213222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48294903 + ... + 48299505.

It is an arithmetic number, because the mean of its divisors is an integer number (4213730430).

Almost surely, 2^222312030012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222312030012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303388590960).

222312030012 is an abundant number, since it is smaller than the sum of its proper divisors (384465151908).

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

222312030012 is a wasteful number, since it uses less digits than its factorization.

222312030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172 (or 6167 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 222312030012 its reverse (210030213222), we get a palindrome (432342243234).

The spelling of 222312030012 in words is "two hundred twenty-two billion, three hundred twelve million, thirty thousand, twelve".