211202122120109 has 8 divisors (see below), whose sum is σ = 211316232646080. Its totient is φ = 211088021921056.

The previous prime is 211202122120051. The next prime is 211202122120141. The reversal of 211202122120109 is 901021221202112.

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 211202122120109 - 2²⁰ = 211202121071533 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 (211202122120169) 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, 38509097 + ... + 43650369.

It is an arithmetic number, because the mean of its divisors is an integer number (26414529080760).

Almost surely, 2^{211202122120109} is an apocalyptic number.

It is an amenable number.

211202122120109 is a deficient number, since it is larger than the sum of its proper divisors (114110525971).

211202122120109 is a wasteful number, since it uses less digits than its factorization.

211202122120109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5163459.

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

The spelling of 211202122120109 in words is "two hundred eleven trillion, two hundred two billion, one hundred twenty-two million, one hundred twenty thousand, one hundred nine".