20221001102021 has 8 divisors (see below), whose sum is σ = 20240139495744. Its totient is φ = 20201863995360.

The previous prime is 20221001101963. The next prime is 20221001102041. The reversal of 20221001102021 is 12020110012202.

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

It is a cyclic number.

It is not a de Polignac number, because 20221001102021 - 2¹⁰ = 20221001100997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20221001101987 and 20221001102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221001102041) 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, 32716826 + ... + 33329156.

It is an arithmetic number, because the mean of its divisors is an integer number (2530017436968).

Almost surely, 2^{20221001102021} is an apocalyptic number.

It is an amenable number.

20221001102021 is a deficient number, since it is larger than the sum of its proper divisors (19138393723).

20221001102021 is a wasteful number, since it uses less digits than its factorization.

20221001102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643531.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20221001102021 its reverse (12020110012202), we get a palindrome (32241111114223).

The spelling of 20221001102021 in words is "twenty trillion, two hundred twenty-one billion, one million, one hundred two thousand, twenty-one".