2002221002021 has 8 divisors (see below), whose sum is σ = 2008045569024. Its totient is φ = 1996396748800.

The previous prime is 2002221001973. The next prime is 2002221002063. The reversal of 2002221002021 is 1202001222002.

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 2002221002021 - 2³⁰ = 2001147260197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002221001987 and 2002221002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002221005021) 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, 20560796 + ... + 20657946.

It is an arithmetic number, because the mean of its divisors is an integer number (251005696128).

Almost surely, 2^{2002221002021} is an apocalyptic number.

It is an amenable number.

2002221002021 is a deficient number, since it is larger than the sum of its proper divisors (5824567003).

2002221002021 is an equidigital number, since it uses as much as digits as its factorization.

2002221002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156891.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2002221002021 its reverse (1202001222002), we get a palindrome (3204222224023).

The spelling of 2002221002021 in words is "two trillion, two billion, two hundred twenty-one million, two thousand, twenty-one".