212630016 has 120 divisors (see below), whose sum is σ = 602997120. Its totient is φ = 66568192.

The previous prime is 212629997. The next prime is 212630017. The reversal of 212630016 is 610036212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212629974 and 212630001.

It is not an unprimeable number, because it can be changed into a prime (212630017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 443665 + ... + 444143.

It is an arithmetic number, because the mean of its divisors is an integer number (5024976).

Almost surely, 2^212630016 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 212630016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301498560).

212630016 is an abundant number, since it is smaller than the sum of its proper divisors (390367104).

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

212630016 is an equidigital number, since it uses as much as digits as its factorization.

212630016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 212630016 is about 14581.8385672041. The cubic root of 212630016 is about 596.8632746104.

Adding to 212630016 its reverse (610036212), we get a palindrome (822666228).

The spelling of 212630016 in words is "two hundred twelve million, six hundred thirty thousand, sixteen".