212205016 has 32 divisors (see below), whose sum is σ = 423239040. Its totient is φ = 99399168.

The previous prime is 212204987. The next prime is 212205017. The reversal of 212205016 is 610502212.

It is a junction number, because it is equal to n+sod(n) for n = 212204984 and 212205002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212205017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26830 + ... + 33826.

It is an arithmetic number, because the mean of its divisors is an integer number (13226220).

Almost surely, 2^212205016 is an apocalyptic number.

It is an amenable number.

212205016 is a deficient number, since it is larger than the sum of its proper divisors (211034024).

212205016 is a wasteful number, since it uses less digits than its factorization.

212205016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7243 (or 7239 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 212205016 is about 14567.2583556413. The cubic root of 212205016 is about 596.4653438255.

Adding to 212205016 its reverse (610502212), we get a palindrome (822707228).

The spelling of 212205016 in words is "two hundred twelve million, two hundred five thousand, sixteen".