101000201209 has 2 divisors, whose sum is σ = 101000201210. Its totient is φ = 101000201208.

The previous prime is 101000201191. The next prime is 101000201221. The reversal of 101000201209 is 902102000101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101000018025 + 183184 = 317805^2 + 428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101000201209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101000201192 and 101000201201.

It is not a weakly prime, because it can be changed into another prime (101000201909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500100604 + 50500100605.

It is an arithmetic number, because the mean of its divisors is an integer number (50500100605).

Almost surely, 2^101000201209 is an apocalyptic number.

It is an amenable number.

101000201209 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000201209 is an equidigital number, since it uses as much as digits as its factorization.

101000201209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 101000201209 in words is "one hundred one billion, two hundred one thousand, two hundred nine".