2021002200021 has 8 divisors (see below), whose sum is σ = 3079622400064. Its totient is φ = 1154858400000.

The previous prime is 2021002199981. The next prime is 2021002200053. The reversal of 2021002200021 is 1200022001202.

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

It is not a de Polignac number, because 2021002200021 - 2²⁶ = 2020935091157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021002280021) 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, 48119099980 + ... + 48119100021.

It is an arithmetic number, because the mean of its divisors is an integer number (384952800008).

Almost surely, 2^{2021002200021} is an apocalyptic number.

2021002200021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2021002200021 is a deficient number, since it is larger than the sum of its proper divisors (1058620200043).

2021002200021 is an equidigital number, since it uses as much as digits as its factorization.

2021002200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96238200011.

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

Adding to 2021002200021 its reverse (1200022001202), we get a palindrome (3221024201223).

The spelling of 2021002200021 in words is "two trillion, twenty-one billion, two million, two hundred thousand, twenty-one".