211012020209 has 8 divisors (see below), whose sum is σ = 223465368960. Its totient is φ = 198563213376.

The previous prime is 211012020151. The next prime is 211012020227. The reversal of 211012020209 is 902020210112.

It is a happy number.

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 211012020209 - 2³⁶ = 142292543473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211012020229) 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, 1039589 + ... + 1225874.

It is an arithmetic number, because the mean of its divisors is an integer number (27933171120).

Almost surely, 2^211012020209 is an apocalyptic number.

It is an amenable number.

211012020209 is a deficient number, since it is larger than the sum of its proper divisors (12453348751).

211012020209 is a wasteful number, since it uses less digits than its factorization.

211012020209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270959.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 211012020209 in words is "two hundred eleven billion, twelve million, twenty thousand, two hundred nine".