2021022201021 has 32 divisors (see below), whose sum is σ = 2746888657920. Its totient is φ = 1321439691264.

The previous prime is 2021022200881. The next prime is 2021022201041. The reversal of 2021022201021 is 1201022201202.

It is not a de Polignac number, because 2021022201021 - 2¹⁴ = 2021022184637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021022201041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46736416 + ... + 46779638.

It is an arithmetic number, because the mean of its divisors is an integer number (85840270560).

Almost surely, 2^{2021022201021} is an apocalyptic number.

It is an amenable number.

2021022201021 is a deficient number, since it is larger than the sum of its proper divisors (725866456899).

2021022201021 is a wasteful number, since it uses less digits than its factorization.

2021022201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44305.

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

Adding to 2021022201021 its reverse (1201022201202), we get a palindrome (3222044402223).

The spelling of 2021022201021 in words is "two trillion, twenty-one billion, twenty-two million, two hundred one thousand, twenty-one".