1002220009 has 16 divisors (see below), whose sum is σ = 1196888832. Its totient is φ = 820531008.

The previous prime is 1002220001. The next prime is 1002220033. The reversal of 1002220009 is 9000222001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1002220009 - 2³ = 1002220001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002219974 and 1002220001.

It is not an unprimeable number, because it can be changed into a prime (1002220001) 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 15 ways as a sum of consecutive naturals, for example, 120427 + ... + 128479.

It is an arithmetic number, because the mean of its divisors is an integer number (74805552).

Almost surely, 2^1002220009 is an apocalyptic number.

It is an amenable number.

1002220009 is a deficient number, since it is larger than the sum of its proper divisors (194668823).

1002220009 is an equidigital number, since it uses as much as digits as its factorization.

1002220009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8856.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1002220009 is about 31657.8585662391. The cubic root of 1002220009 is about 1000.7394560699.

The spelling of 1002220009 in words is "one billion, two million, two hundred twenty thousand, nine".