212230220312 has 16 divisors (see below), whose sum is σ = 434107269000. Its totient is φ = 96468281920.

The previous prime is 212230220297. The next prime is 212230220333. The reversal of 212230220312 is 213022032212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205853437 + ... + 1205853612.

Almost surely, 2^212230220312 is an apocalyptic number.

212230220312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212230220312 is an abundant number, since it is smaller than the sum of its proper divisors (221877048688).

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

212230220312 is a wasteful number, since it uses less digits than its factorization.

212230220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411707066 (or 2411707062 counting only the distinct ones).

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

Adding to 212230220312 its reverse (213022032212), we get a palindrome (425252252524).

The spelling of 212230220312 in words is "two hundred twelve billion, two hundred thirty million, two hundred twenty thousand, three hundred twelve".