212199342 has 8 divisors (see below), whose sum is σ = 424398696. Its totient is φ = 70733112.

The previous prime is 212199331. The next prime is 212199349. The reversal of 212199342 is 243991212.

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

212199342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212199349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17683273 + ... + 17683284.

It is an arithmetic number, because the mean of its divisors is an integer number (53049837).

Almost surely, 2^212199342 is an apocalyptic number.

212199342 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.

212199342 is a wasteful number, since it uses less digits than its factorization.

212199342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35366562.

The product of its digits is 7776, while the sum is 33.

The square root of 212199342 is about 14567.0636025247. The cubic root of 212199342 is about 596.4600276230.

The spelling of 212199342 in words is "two hundred twelve million, one hundred ninety-nine thousand, three hundred forty-two".