20221313013021 has 8 divisors (see below), whose sum is σ = 26967585316384. Its totient is φ = 13477958025840.

The previous prime is 20221313013007. The next prime is 20221313013089. The reversal of 20221313013021 is 12031031312202.

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

It is not a de Polignac number, because 20221313013021 - 2¹⁰ = 20221313011997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221313013001) 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, 729312871 + ... + 729340596.

It is an arithmetic number, because the mean of its divisors is an integer number (3370948164548).

Almost surely, 2^{20221313013021} is an apocalyptic number.

It is an amenable number.

20221313013021 is a deficient number, since it is larger than the sum of its proper divisors (6746272303363).

20221313013021 is a wasteful number, since it uses less digits than its factorization.

20221313013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458658091.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20221313013021 its reverse (12031031312202), we get a palindrome (32252344325223).

The spelling of 20221313013021 in words is "twenty trillion, two hundred twenty-one billion, three hundred thirteen million, thirteen thousand, twenty-one".