10202121210009 has 8 divisors (see below), whose sum is σ = 13603156169760. Its totient is φ = 6801250195136.

The previous prime is 10202121209999. The next prime is 10202121210011. The reversal of 10202121210009 is 90001212120201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10202121210009 - 2¹³ = 10202121201817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10202121210019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40840944 + ... + 41089985.

It is an arithmetic number, because the mean of its divisors is an integer number (1700394521220).

Almost surely, 2^{10202121210009} is an apocalyptic number.

It is an amenable number.

10202121210009 is a deficient number, since it is larger than the sum of its proper divisors (3401034959751).

10202121210009 is an equidigital number, since it uses as much as digits as its factorization.

10202121210009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81972439.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 10202121210009 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, two hundred ten thousand, nine".