20221300443 has 16 divisors (see below), whose sum is σ = 27622995840. Its totient is φ = 13151014464.

The previous prime is 20221300391. The next prime is 20221300459. The reversal of 20221300443 is 34400312202.

It is not a de Polignac number, because 20221300443 - 2¹⁰ = 20221299419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20221300493) 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, 7480 + ... + 201242.

It is an arithmetic number, because the mean of its divisors is an integer number (1726437240).

Almost surely, 2^20221300443 is an apocalyptic number.

20221300443 is a deficient number, since it is larger than the sum of its proper divisors (7401695397).

20221300443 is a wasteful number, since it uses less digits than its factorization.

20221300443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194618.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20221300443 its reverse (34400312202), we get a palindrome (54621612645).

The spelling of 20221300443 in words is "twenty billion, two hundred twenty-one million, three hundred thousand, four hundred forty-three".