212912968 has 32 divisors (see below), whose sum is σ = 406992600. Its totient is φ = 104398848.

The previous prime is 212912957. The next prime is 212912977. The reversal of 212912968 is 869219212.

It can be written as a sum of positive squares in 4 ways, for example, as 163379524 + 49533444 = 12782^2 + 7038^2 .

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 212912968.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111768 + ... + 113656.

Almost surely, 2^212912968 is an apocalyptic number.

It is an amenable number.

212912968 is a deficient number, since it is larger than the sum of its proper divisors (194079632).

212912968 is a wasteful number, since it uses less digits than its factorization.

212912968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2157 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 212912968 is about 14591.5375474965. The cubic root of 212912968 is about 597.1279108132.

The spelling of 212912968 in words is "two hundred twelve million, nine hundred twelve thousand, nine hundred sixty-eight".