212210209999 has 8 divisors (see below), whose sum is σ = 223537734000. Its totient is φ = 200898542592.

The previous prime is 212210209973. The next prime is 212210210011. The reversal of 212210209999 is 999902012212.

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 212210209999 - 2¹⁹ = 212209685711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210209199) 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, 3936664 + ... + 3990205.

It is an arithmetic number, because the mean of its divisors is an integer number (27942216750).

Almost surely, 2^212210209999 is an apocalyptic number.

212210209999 is a deficient number, since it is larger than the sum of its proper divisors (11327524001).

212210209999 is a wasteful number, since it uses less digits than its factorization.

212210209999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928297.

The product of its (nonzero) digits is 104976, while the sum is 46.

The spelling of 212210209999 in words is "two hundred twelve billion, two hundred ten million, two hundred nine thousand, nine hundred ninety-nine".