212210804 has 24 divisors (see below), whose sum is σ = 400972488. Its totient is φ = 97689600.

The previous prime is 212210783. The next prime is 212210809. The reversal of 212210804 is 408012212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71740900 + 140469904 = 8470^2 + 11852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15764 + ... + 25940.

It is an arithmetic number, because the mean of its divisors is an integer number (16707187).

Almost surely, 2^212210804 is an apocalyptic number.

It is an amenable number.

212210804 is a deficient number, since it is larger than the sum of its proper divisors (188761684).

212210804 is a wasteful number, since it uses less digits than its factorization.

212210804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10595 (or 10593 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 212210804 is about 14567.4570189858. The cubic root of 212210804 is about 596.4707667417.

The spelling of 212210804 in words is "two hundred twelve million, two hundred ten thousand, eight hundred four".