21222302220043 has 2 divisors, whose sum is σ = 21222302220044. Its totient is φ = 21222302220042.

The previous prime is 21222302220011. The next prime is 21222302220061. The reversal of 21222302220043 is 34002220322212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21222302220043 - 2⁵ = 21222302220011 is a prime.

It is a super-2 number, since 2×21222302220043² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21222302220443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611151110021 + 10611151110022.

It is an arithmetic number, because the mean of its divisors is an integer number (10611151110022).

Almost surely, 2^{21222302220043} is an apocalyptic number.

21222302220043 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222302220043 is an equidigital number, since it uses as much as digits as its factorization.

21222302220043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 21222302220043 its reverse (34002220322212), we get a palindrome (55224522542255).

The spelling of 21222302220043 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred two million, two hundred twenty thousand, forty-three".