21422344711 has 2 divisors, whose sum is σ = 21422344712. Its totient is φ = 21422344710.

The previous prime is 21422344681. The next prime is 21422344717. The reversal of 21422344711 is 11744322412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21422344711 - 2⁵ = 21422344679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21422344717) 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, 10711172355 + 10711172356.

It is an arithmetic number, because the mean of its divisors is an integer number (10711172356).

Almost surely, 2^21422344711 is an apocalyptic number.

21422344711 is a deficient number, since it is larger than the sum of its proper divisors (1).

21422344711 is an equidigital number, since it uses as much as digits as its factorization.

21422344711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 31.

The spelling of 21422344711 in words is "twenty-one billion, four hundred twenty-two million, three hundred forty-four thousand, seven hundred eleven".