2002022100021 has 32 divisors (see below), whose sum is σ = 2735172160000. Its totient is φ = 1302218311680.

The previous prime is 2002022099947. The next prime is 2002022100031. The reversal of 2002022100021 is 1200012202002.

It is not a de Polignac number, because 2002022100021 - 2²⁹ = 2001485229109 is a prime.

It is a super-3 number, since 3×2002022100021³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002022100031) 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 31 ways as a sum of consecutive naturals, for example, 15129855 + ... + 15261603.

It is an arithmetic number, because the mean of its divisors is an integer number (85474130000).

Almost surely, 2^{2002022100021} is an apocalyptic number.

It is an amenable number.

2002022100021 is a deficient number, since it is larger than the sum of its proper divisors (733150059979).

2002022100021 is a wasteful number, since it uses less digits than its factorization.

2002022100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132589.

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

Adding to 2002022100021 its reverse (1200012202002), we get a palindrome (3202034302023).

The spelling of 2002022100021 in words is "two trillion, two billion, twenty-two million, one hundred thousand, twenty-one".