2021202033221 has 16 divisors (see below), whose sum is σ = 2402413461888. Its totient is φ = 1664428651200.

The previous prime is 2021202033217. The next prime is 2021202033317. The reversal of 2021202033221 is 1223302021202.

It is a happy number.

It is not a de Polignac number, because 2021202033221 - 2² = 2021202033217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021202033193 and 2021202033202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021201033221) 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, 55022270 + ... + 55058991.

It is an arithmetic number, because the mean of its divisors is an integer number (150150841368).

Almost surely, 2^{2021202033221} is an apocalyptic number.

It is an amenable number.

2021202033221 is a deficient number, since it is larger than the sum of its proper divisors (381211428667).

2021202033221 is a wasteful number, since it uses less digits than its factorization.

2021202033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110081372.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2021202033221 its reverse (1223302021202), we get a palindrome (3244504054423).

The spelling of 2021202033221 in words is "two trillion, twenty-one billion, two hundred two million, thirty-three thousand, two hundred twenty-one".