2021101200221 has 8 divisors (see below), whose sum is σ = 2143548530304. Its totient is φ = 1901534983920.

The previous prime is 2021101200197. The next prime is 2021101200253. The reversal of 2021101200221 is 1220021011202.

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 2021101200221 - 2²⁶ = 2021034091357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021101200196 and 2021101200205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021101200271) 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, 720277001 + ... + 720279806.

It is an arithmetic number, because the mean of its divisors is an integer number (267943566288).

Almost surely, 2^{2021101200221} is an apocalyptic number.

It is an amenable number.

2021101200221 is a deficient number, since it is larger than the sum of its proper divisors (122447330083).

2021101200221 is a wasteful number, since it uses less digits than its factorization.

2021101200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440556891.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021101200221 its reverse (1220021011202), we get a palindrome (3241122211423).

The spelling of 2021101200221 in words is "two trillion, twenty-one billion, one hundred one million, two hundred thousand, two hundred twenty-one".