2020021201221 has 8 divisors (see below), whose sum is σ = 2693496410304. Its totient is φ = 1346613396480.

The previous prime is 2020021201207. The next prime is 2020021201229. The reversal of 2020021201221 is 1221021200202.

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

It is not a de Polignac number, because 2020021201221 - 2⁹ = 2020021200709 is a prime.

It is a super-3 number, since 3×2020021201221³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2020021201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020021201229) 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, 16781116 + ... + 16901061.

It is an arithmetic number, because the mean of its divisors is an integer number (336687051288).

Almost surely, 2^{2020021201221} is an apocalyptic number.

It is an amenable number.

2020021201221 is a deficient number, since it is larger than the sum of its proper divisors (673475209083).

2020021201221 is a wasteful number, since it uses less digits than its factorization.

2020021201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33702171.

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

Adding to 2020021201221 its reverse (1221021200202), we get a palindrome (3241042401423).

The spelling of 2020021201221 in words is "two trillion, twenty billion, twenty-one million, two hundred one thousand, two hundred twenty-one".