21200222200043 has 2 divisors, whose sum is σ = 21200222200044. Its totient is φ = 21200222200042.

The previous prime is 21200222200039. The next prime is 21200222200121. The reversal of 21200222200043 is 34000222200212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21200222200043 - 2² = 21200222200039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21200222199988 and 21200222200024.

It is not a weakly prime, because it can be changed into another prime (21200222200343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600111100021 + 10600111100022.

It is an arithmetic number, because the mean of its divisors is an integer number (10600111100022).

Almost surely, 2^{21200222200043} is an apocalyptic number.

21200222200043 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200222200043 is an equidigital number, since it uses as much as digits as its factorization.

21200222200043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21200222200043 its reverse (34000222200212), we get a palindrome (55200444400255).

The spelling of 21200222200043 in words is "twenty-one trillion, two hundred billion, two hundred twenty-two million, two hundred thousand, forty-three".