212099982 has 8 divisors (see below), whose sum is σ = 424199976. Its totient is φ = 70699992.

The previous prime is 212099981. The next prime is 212100017. The reversal of 212099982 is 289990212.

It is a happy number.

212099982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

212099982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212099981) 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 3 ways as a sum of consecutive naturals, for example, 17674993 + ... + 17675004.

It is an arithmetic number, because the mean of its divisors is an integer number (53024997).

Almost surely, 2^212099982 is an apocalyptic number.

212099982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212099982 is a wasteful number, since it uses less digits than its factorization.

212099982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35350002.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 212099982 is about 14563.6527698239. The cubic root of 212099982 is about 596.3669178139.

The spelling of 212099982 in words is "two hundred twelve million, ninety-nine thousand, nine hundred eighty-two".