212210220109 has 8 divisors (see below), whose sum is σ = 213807440000. Its totient is φ = 210614008032.

The previous prime is 212210220059. The next prime is 212210220119. The reversal of 212210220109 is 901022012212.

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 212210220109 - 2¹⁷ = 212210089037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212210220109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210220119) 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, 173452 + ... + 674170.

It is an arithmetic number, because the mean of its divisors is an integer number (26725930000).

Almost surely, 2^212210220109 is an apocalyptic number.

It is an amenable number.

212210220109 is a deficient number, since it is larger than the sum of its proper divisors (1597219891).

212210220109 is a wasteful number, since it uses less digits than its factorization.

212210220109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503907.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 212210220109 in words is "two hundred twelve billion, two hundred ten million, two hundred twenty thousand, one hundred nine".