2012004209 has 2 divisors, whose sum is σ = 2012004210. Its totient is φ = 2012004208.

The previous prime is 2012004121. The next prime is 2012004229. The reversal of 2012004209 is 9024002102.

It is an a-pointer prime, because the next prime (2012004229) can be obtained adding 2012004209 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1065826609 + 946177600 = 32647^2 + 30760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012004209 - 2⁸ = 2012003953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012004229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006002104 + 1006002105.

It is an arithmetic number, because the mean of its divisors is an integer number (1006002105).

Almost surely, 2^2012004209 is an apocalyptic number.

It is an amenable number.

2012004209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012004209 is an equidigital number, since it uses as much as digits as its factorization.

2012004209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2012004209 is about 44855.3699014956. The cubic root of 2012004209 is about 1262.4367493588.

The spelling of 2012004209 in words is "two billion, twelve million, four thousand, two hundred nine".