10200101209 has 2 divisors, whose sum is σ = 10200101210. Its totient is φ = 10200101208.

The previous prime is 10200101179. The next prime is 10200101291. The reversal of 10200101209 is 90210100201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7694798400 + 2505302809 = 87720^2 + 50053^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200101209 - 2¹³ = 10200093017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10200101192 and 10200101201.

It is not a weakly prime, because it can be changed into another prime (10200101809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100050604 + 5100050605.

It is an arithmetic number, because the mean of its divisors is an integer number (5100050605).

Almost surely, 2^10200101209 is an apocalyptic number.

It is an amenable number.

10200101209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200101209 is an equidigital number, since it uses as much as digits as its factorization.

10200101209 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 10200101209 in words is "ten billion, two hundred million, one hundred one thousand, two hundred nine".