1002120210009 has 12 divisors (see below), whose sum is σ = 1481169923376. Its totient is φ = 652543392312.

The previous prime is 1002120209983. The next prime is 1002120210043. The reversal of 1002120210009 is 9000120212001.

It is not a de Polignac number, because 1002120210009 - 2²⁷ = 1001985992281 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1002120209973 and 1002120210000.

It is not an unprimeable number, because it can be changed into a prime (1002120200009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1294728567 + ... + 1294729340.

It is an arithmetic number, because the mean of its divisors is an integer number (123430826948).

Almost surely, 2^{1002120210009} is an apocalyptic number.

It is an amenable number.

1002120210009 is a deficient number, since it is larger than the sum of its proper divisors (479049713367).

1002120210009 is a wasteful number, since it uses less digits than its factorization.

1002120210009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589457956 (or 2589457953 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 1002120210009 in words is "one trillion, two billion, one hundred twenty million, two hundred ten thousand, nine".