201012001209 has 12 divisors (see below), whose sum is σ = 305632282800. Its totient is φ = 126954948024.

The previous prime is 201012001199. The next prime is 201012001219. The reversal of 201012001209 is 902100210102.

It is an interprime number because it is at equal distance from previous prime (201012001199) and next prime (201012001219).

It is not a de Polignac number, because 201012001209 - 2⁷ = 201012001081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201012001191 and 201012001200.

It is not an unprimeable number, because it can be changed into a prime (201012001219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 587754219 + ... + 587754560.

It is an arithmetic number, because the mean of its divisors is an integer number (25469356900).

Almost surely, 2^201012001209 is an apocalyptic number.

It is an amenable number.

201012001209 is a deficient number, since it is larger than the sum of its proper divisors (104620281591).

201012001209 is a wasteful number, since it uses less digits than its factorization.

201012001209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175508804 (or 1175508801 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 201012001209 in words is "two hundred one billion, twelve million, one thousand, two hundred nine".