20200212209 has 8 divisors (see below), whose sum is σ = 21399925248. Its totient is φ = 19001773120.

The previous prime is 20200212199. The next prime is 20200212229. The reversal of 20200212209 is 90221200202.

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

It is a de Polignac number, because none of the positive numbers 2^k-20200212209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20200212229) 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, 285737 + ... + 349350.

It is an arithmetic number, because the mean of its divisors is an integer number (2674990656).

Almost surely, 2^20200212209 is an apocalyptic number.

It is an amenable number.

20200212209 is a deficient number, since it is larger than the sum of its proper divisors (1199713039).

20200212209 is a wasteful number, since it uses less digits than its factorization.

20200212209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636975.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 20200212209 in words is "twenty billion, two hundred million, two hundred twelve thousand, two hundred nine".