200120202212009 has 2 divisors, whose sum is σ = 200120202212010. Its totient is φ = 200120202212008.

The previous prime is 200120202211999. The next prime is 200120202212027. The reversal of 200120202212009 is 900212202021002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189017045232409 + 11103156979600 = 13748347^2 + 3332140^2 .

It is a cyclic number.

It is not a de Polignac number, because 200120202212009 - 2⁴⁴ = 182528016167593 is a prime.

It is not a weakly prime, because it can be changed into another prime (200120202232009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060101106004 + 100060101106005.

It is an arithmetic number, because the mean of its divisors is an integer number (100060101106005).

Almost surely, 2^{200120202212009} is an apocalyptic number.

It is an amenable number.

200120202212009 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120202212009 is an equidigital number, since it uses as much as digits as its factorization.

200120202212009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 200120202212009 in words is "two hundred trillion, one hundred twenty billion, two hundred two million, two hundred twelve thousand, nine".