2021200010221 has 16 divisors (see below), whose sum is σ = 2311792560000. Its totient is φ = 1731070298880.

The previous prime is 2021200010201. The next prime is 2021200010237. The reversal of 2021200010221 is 1220100021202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2021200010221 - 2²³ = 2021191621613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021200010201) 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, 76987905 + ... + 77014153.

It is an arithmetic number, because the mean of its divisors is an integer number (144487035000).

Almost surely, 2^{2021200010221} is an apocalyptic number.

It is an amenable number.

2021200010221 is a deficient number, since it is larger than the sum of its proper divisors (290592549779).

2021200010221 is a wasteful number, since it uses less digits than its factorization.

2021200010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34644.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2021200010221 its reverse (1220100021202), we get a palindrome (3241300031423).

The spelling of 2021200010221 in words is "two trillion, twenty-one billion, two hundred million, ten thousand, two hundred twenty-one".