212020223209 has 8 divisors (see below), whose sum is σ = 221115872768. Its totient is φ = 203065591680.

The previous prime is 212020223201. The next prime is 212020223221. The reversal of 212020223209 is 902322020212.

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

It is a cyclic number.

It is not a de Polignac number, because 212020223209 - 2³ = 212020223201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212020223201) 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, 35251437 + ... + 35257450.

It is an arithmetic number, because the mean of its divisors is an integer number (27639484096).

Almost surely, 2^212020223209 is an apocalyptic number.

It is an amenable number.

212020223209 is a deficient number, since it is larger than the sum of its proper divisors (9095649559).

212020223209 is an equidigital number, since it uses as much as digits as its factorization.

212020223209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70509015.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 212020223209 in words is "two hundred twelve billion, twenty million, two hundred twenty-three thousand, two hundred nine".