210000222109 has 4 divisors (see below), whose sum is σ = 210002520604. Its totient is φ = 209997923616.

The previous prime is 210000222013. The next prime is 210000222137. The reversal of 210000222109 is 901222000012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114935916484 + 95064305625 = 339022^2 + 308325^2 .

It is a cyclic number.

It is not a de Polignac number, because 210000222109 - 2¹¹ = 210000220061 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 (210000222209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006272 + ... + 1196905.

It is an arithmetic number, because the mean of its divisors is an integer number (52500630151).

Almost surely, 2^210000222109 is an apocalyptic number.

It is an amenable number.

210000222109 is a deficient number, since it is larger than the sum of its proper divisors (2298495).

210000222109 is an equidigital number, since it uses as much as digits as its factorization.

210000222109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298494.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 210000222109 in words is "two hundred ten billion, two hundred twenty-two thousand, one hundred nine".