200112201209 has 2 divisors, whose sum is σ = 200112201210. Its totient is φ = 200112201208.

The previous prime is 200112201181. The next prime is 200112201239. The reversal of 200112201209 is 902102211002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128555951209 + 71556250000 = 358547^2 + 267500^2 .

It is a cyclic number.

It is not a de Polignac number, because 200112201209 - 2²⁴ = 200095423993 is a prime.

It is a super-2 number, since 2×200112201209² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200112201239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100056100604 + 100056100605.

It is an arithmetic number, because the mean of its divisors is an integer number (100056100605).

Almost surely, 2^200112201209 is an apocalyptic number.

It is an amenable number.

200112201209 is a deficient number, since it is larger than the sum of its proper divisors (1).

200112201209 is an equidigital number, since it uses as much as digits as its factorization.

200112201209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 200112201209 in words is "two hundred billion, one hundred twelve million, two hundred one thousand, two hundred nine".