22002102020221 has 4 divisors (see below), whose sum is σ = 22007239101792. Its totient is φ = 21996964938652.

The previous prime is 22002102020201. The next prime is 22002102020257. The reversal of 22002102020221 is 12202020120022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22002102020221 - 2¹³ = 22002102012029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22002102020195 and 22002102020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002102020201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2568534361 + ... + 2568542926.

It is an arithmetic number, because the mean of its divisors is an integer number (5501809775448).

Almost surely, 2^{22002102020221} is an apocalyptic number.

It is an amenable number.

22002102020221 is a deficient number, since it is larger than the sum of its proper divisors (5137081571).

22002102020221 is an equidigital number, since it uses as much as digits as its factorization.

22002102020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137081570.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22002102020221 its reverse (12202020120022), we get a palindrome (34204122140243).

The spelling of 22002102020221 in words is "twenty-two trillion, two billion, one hundred two million, twenty thousand, two hundred twenty-one".