212066700 has 72 divisors (see below), whose sum is σ = 619627008. Its totient is φ = 55993920.

The previous prime is 212066677. The next prime is 212066707. The reversal of 212066700 is 7660212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212066707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27469 + ... + 34331.

Almost surely, 2^212066700 is an apocalyptic number.

212066700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212066700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309813504).

212066700 is an abundant number, since it is smaller than the sum of its proper divisors (407560308).

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

212066700 is a wasteful number, since it uses less digits than its factorization.

212066700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983 (or 6976 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 212066700 is about 14562.5100858334. The cubic root of 212066700 is about 596.3357229000.

The spelling of 212066700 in words is "two hundred twelve million, sixty-six thousand, seven hundred".