1021010201009 has 8 divisors (see below), whose sum is σ = 1033331463360. Its totient is φ = 1008689413456.

The previous prime is 1021010200919. The next prime is 1021010201027. The reversal of 1021010201009 is 9001020101201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021010201009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021010201609) 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, 6268007 + ... + 6428835.

It is an arithmetic number, because the mean of its divisors is an integer number (129166432920).

Almost surely, 2^{1021010201009} is an apocalyptic number.

It is an amenable number.

1021010201009 is a deficient number, since it is larger than the sum of its proper divisors (12321262351).

1021010201009 is an equidigital number, since it uses as much as digits as its factorization.

1021010201009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237399.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 1021010201009 in words is "one trillion, twenty-one billion, ten million, two hundred one thousand, nine".