20020212209 has 16 divisors (see below), whose sum is σ = 20620085760. Its totient is φ = 19429138560.

The previous prime is 20020212187. The next prime is 20020212211. The reversal of 20020212209 is 90221202002.

It is not a de Polignac number, because 20020212209 - 2²⁸ = 19751776753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020211209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4313312 + ... + 4317950.

It is an arithmetic number, because the mean of its divisors is an integer number (1288755360).

Almost surely, 2^20020212209 is an apocalyptic number.

It is an amenable number.

20020212209 is a deficient number, since it is larger than the sum of its proper divisors (599873551).

20020212209 is a wasteful number, since it uses less digits than its factorization.

20020212209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560.

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

The spelling of 20020212209 in words is "twenty billion, twenty million, two hundred twelve thousand, two hundred nine".