212005199 has 8 divisors (see below), whose sum is σ = 244556928. Its totient is φ = 180019800.

The previous prime is 212005193. The next prime is 212005217. The reversal of 212005199 is 991500212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212005199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212005193) 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, 140777 + ... + 142274.

It is an arithmetic number, because the mean of its divisors is an integer number (30569616).

Almost surely, 2^212005199 is an apocalyptic number.

212005199 is a deficient number, since it is larger than the sum of its proper divisors (32551729).

212005199 is a wasteful number, since it uses less digits than its factorization.

212005199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283165.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 212005199 is about 14560.3983118595. The cubic root of 212005199 is about 596.2780699866.

The spelling of 212005199 in words is "two hundred twelve million, five thousand, one hundred ninety-nine".