20222215543 has 2 divisors, whose sum is σ = 20222215544. Its totient is φ = 20222215542.

The previous prime is 20222215501. The next prime is 20222215609. The reversal of 20222215543 is 34551222202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20222215543 - 2²⁵ = 20188661111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20222210543) 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 as a sum of consecutive naturals, namely, 10111107771 + 10111107772.

It is an arithmetic number, because the mean of its divisors is an integer number (10111107772).

Almost surely, 2^20222215543 is an apocalyptic number.

20222215543 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222215543 is an equidigital number, since it uses as much as digits as its factorization.

20222215543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 20222215543 its reverse (34551222202), we get a palindrome (54773437745).

The spelling of 20222215543 in words is "twenty billion, two hundred twenty-two million, two hundred fifteen thousand, five hundred forty-three".