212012123232 has 192 divisors, whose sum is σ = 692660989440. Its totient is φ = 55286820864.

The previous prime is 212012123231. The next prime is 212012123251. The reversal of 212012123232 is 232321210212.

212012123232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 212012123199 and 212012123208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012123231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 641163 + ... + 913845.

It is an arithmetic number, because the mean of its divisors is an integer number (3607609320).

Almost surely, 2^212012123232 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 212012123232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346330494720).

212012123232 is an abundant number, since it is smaller than the sum of its proper divisors (480648866208).

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

212012123232 is a wasteful number, since it uses less digits than its factorization.

212012123232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272805 (or 272797 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212012123232 its reverse (232321210212), we get a palindrome (444333333444).

The spelling of 212012123232 in words is "two hundred twelve billion, twelve million, one hundred twenty-three thousand, two hundred thirty-two".