20012199 has 8 divisors (see below), whose sum is σ = 26703600. Its totient is φ = 13331136.

The previous prime is 20012191. The next prime is 20012203. The reversal of 20012199 is 99121002.

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

It is not a de Polignac number, because 20012199 - 2³ = 20012191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012191) 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 7 ways as a sum of consecutive naturals, for example, 6339 + ... + 8955.

It is an arithmetic number, because the mean of its divisors is an integer number (3337950).

Almost surely, 2^20012199 is an apocalyptic number.

20012199 is a deficient number, since it is larger than the sum of its proper divisors (6691401).

20012199 is a wasteful number, since it uses less digits than its factorization.

20012199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 20012199 is about 4473.4996367497. The cubic root of 20012199 is about 271.4969390767.

The spelling of 20012199 in words is "twenty million, twelve thousand, one hundred ninety-nine".