202112201001109 has 6 divisors (see below), whose sum is σ = 235110111368694. Its totient is φ = 173239029429480.

The previous prime is 202112201001097. The next prime is 202112201001169. The reversal of 202112201001109 is 901100102211202.

It can be written as a sum of positive squares in only one way, i.e., 201030854746225 + 1081346254884 = 14178535^2 + 1039878^2 .

It is not a de Polignac number, because 202112201001109 - 2⁷ = 202112201000981 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 202112201001109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112201001169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2062369397922 + ... + 2062369398019.

It is an arithmetic number, because the mean of its divisors is an integer number (39185018561449).

Almost surely, 2^{202112201001109} is an apocalyptic number.

It is an amenable number.

202112201001109 is a deficient number, since it is larger than the sum of its proper divisors (32997910367585).

202112201001109 is an equidigital number, since it uses as much as digits as its factorization.

202112201001109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124738795955 (or 4124738795948 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 202112201001109 in words is "two hundred two trillion, one hundred twelve billion, two hundred one million, one thousand, one hundred nine".