2021210200221 has 8 divisors (see below), whose sum is σ = 2713033826400. Its totient is φ = 1338430020432.

The previous prime is 2021210200181. The next prime is 2021210200279. The reversal of 2021210200221 is 1220020121202.

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

It is not a de Polignac number, because 2021210200221 - 2¹¹ = 2021210198173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021210200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021210200421) 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 7 ways as a sum of consecutive naturals, for example, 2260861075 + ... + 2260861968.

It is an arithmetic number, because the mean of its divisors is an integer number (339129228300).

Almost surely, 2^{2021210200221} is an apocalyptic number.

It is an amenable number.

2021210200221 is a deficient number, since it is larger than the sum of its proper divisors (691823626179).

2021210200221 is a wasteful number, since it uses less digits than its factorization.

2021210200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521723195.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2021210200221 its reverse (1220020121202), we get a palindrome (3241230321423).

The spelling of 2021210200221 in words is "two trillion, twenty-one billion, two hundred ten million, two hundred thousand, two hundred twenty-one".