211202221201109 has 8 divisors (see below), whose sum is σ = 213575691812760. Its totient is φ = 208828759744000.

The previous prime is 211202221201087. The next prime is 211202221201117. The reversal of 211202221201109 is 901102122202112.

211202221201109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 553717550884 + 210648503650225 = 744122^2 + 14513735^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211202221201109 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 (211202221201129) 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, 51060659 + ... + 55041759.

It is an arithmetic number, because the mean of its divisors is an integer number (26696961476595).

Almost surely, 2^{211202221201109} is an apocalyptic number.

It is an amenable number.

211202221201109 is a deficient number, since it is larger than the sum of its proper divisors (2373470611651).

211202221201109 is an equidigital number, since it uses as much as digits as its factorization.

211202221201109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577271.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 211202221201109 in words is "two hundred eleven trillion, two hundred two billion, two hundred twenty-one million, two hundred one thousand, one hundred nine".