212019716 has 48 divisors (see below), whose sum is σ = 405382320. Its totient is φ = 96645120.

The previous prime is 212019697. The next prime is 212019721. The reversal of 212019716 is 617910212.

It can be written as a sum of positive squares in 8 ways, for example, as 13322500 + 198697216 = 3650^2 + 14096^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320426 + ... + 321086.

It is an arithmetic number, because the mean of its divisors is an integer number (8445465).

Almost surely, 2^212019716 is an apocalyptic number.

It is an amenable number.

212019716 is a deficient number, since it is larger than the sum of its proper divisors (193362604).

212019716 is a wasteful number, since it uses less digits than its factorization.

212019716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 212019716 is about 14560.8968130401. The cubic root of 212019716 is about 596.2916796704.

Adding to 212019716 its reverse (617910212), we get a palindrome (829929928).

The spelling of 212019716 in words is "two hundred twelve million, nineteen thousand, seven hundred sixteen".