2002201020021 has 8 divisors (see below), whose sum is σ = 2669642511424. Its totient is φ = 1334780104320.

The previous prime is 2002201019999. The next prime is 2002201020077. The reversal of 2002201020021 is 1200201022002.

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

It is a de Polignac number, because none of the positive numbers 2^k-2002201020021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002201019979 and 2002201020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002201025021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4915420 + ... + 5307141.

It is an arithmetic number, because the mean of its divisors is an integer number (333705313928).

Almost surely, 2^{2002201020021} is an apocalyptic number.

It is an amenable number.

2002201020021 is a deficient number, since it is larger than the sum of its proper divisors (667441491403).

2002201020021 is a wasteful number, since it uses less digits than its factorization.

2002201020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287851.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2002201020021 its reverse (1200201022002), we get a palindrome (3202402042023).

The spelling of 2002201020021 in words is "two trillion, two billion, two hundred one million, twenty thousand, twenty-one".