2002221002009 has 4 divisors (see below), whose sum is σ = 2002695578640. Its totient is φ = 2001746425380.

The previous prime is 2002221001973. The next prime is 2002221002063. The reversal of 2002221002009 is 9002001222002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2002221002009 - 2³⁶ = 1933501525273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002221302009) 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 3 ways as a sum of consecutive naturals, for example, 237281987 + ... + 237290424.

It is an arithmetic number, because the mean of its divisors is an integer number (500673894660).

Almost surely, 2^{2002221002009} is an apocalyptic number.

It is an amenable number.

2002221002009 is a deficient number, since it is larger than the sum of its proper divisors (474576631).

2002221002009 is an equidigital number, since it uses as much as digits as its factorization.

2002221002009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474576630.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 2002221002009 in words is "two trillion, two billion, two hundred twenty-one million, two thousand, nine".