2020221200021 has 16 divisors (see below), whose sum is σ = 2050671216000. Its totient is φ = 1990025210880.

The previous prime is 2020221199973. The next prime is 2020221200047. The reversal of 2020221200021 is 1200021220202.

It is a cyclic number.

It is not a de Polignac number, because 2020221200021 - 2⁶ = 2020221199957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020221199969 and 2020221200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020221200071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13514936 + ... + 13663598.

It is an arithmetic number, because the mean of its divisors is an integer number (128166951000).

Almost surely, 2^{2020221200021} is an apocalyptic number.

It is an amenable number.

2020221200021 is a deficient number, since it is larger than the sum of its proper divisors (30450015979).

2020221200021 is a wasteful number, since it uses less digits than its factorization.

2020221200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149516.

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

Adding to 2020221200021 its reverse (1200021220202), we get a palindrome (3220242420223).

The spelling of 2020221200021 in words is "two trillion, twenty billion, two hundred twenty-one million, two hundred thousand, twenty-one".