20202221443 has 2 divisors, whose sum is σ = 20202221444. Its totient is φ = 20202221442.

The previous prime is 20202221401. The next prime is 20202221477. The reversal of 20202221443 is 34412220202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20202221443 - 2¹⁷ = 20202090371 is a prime.

It is not a weakly prime, because it can be changed into another prime (20202221843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101110721 + 10101110722.

It is an arithmetic number, because the mean of its divisors is an integer number (10101110722).

Almost surely, 2^20202221443 is an apocalyptic number.

20202221443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202221443 is an equidigital number, since it uses as much as digits as its factorization.

20202221443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20202221443 its reverse (34412220202), we get a palindrome (54614441645).

The spelling of 20202221443 in words is "twenty billion, two hundred two million, two hundred twenty-one thousand, four hundred forty-three".