212322132 has 144 divisors (see below), whose sum is σ = 617128512. Its totient is φ = 60963840.

The previous prime is 212322127. The next prime is 212322167. The reversal of 212322132 is 231223212.

212322132 is a `hidden beast` number, since 212 + 322 + 132 = 666.

212322132 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 (18).

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

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, 629868 + ... + 630204.

Almost surely, 2^212322132 is an apocalyptic number.

212322132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212322132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308564256).

212322132 is an abundant number, since it is smaller than the sum of its proper divisors (404806380).

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

212322132 is a wasteful number, since it uses less digits than its factorization.

212322132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 433 counting only the distinct ones).

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

The square root of 212322132 is about 14571.2776378738. The cubic root of 212322132 is about 596.5750534346.

Adding to 212322132 its reverse (231223212), we get a palindrome (443545344).

The spelling of 212322132 in words is "two hundred twelve million, three hundred twenty-two thousand, one hundred thirty-two".