21422316067 has 2 divisors, whose sum is σ = 21422316068. Its totient is φ = 21422316066.

The previous prime is 21422315983. The next prime is 21422316101. The reversal of 21422316067 is 76061322412.

It is an a-pointer prime, because the next prime (21422316101) can be obtained adding 21422316067 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21422316067 - 2⁷ = 21422315939 is a prime.

It is not a weakly prime, because it can be changed into another prime (21422316367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10711158033 + 10711158034.

It is an arithmetic number, because the mean of its divisors is an integer number (10711158034).

Almost surely, 2^21422316067 is an apocalyptic number.

21422316067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21422316067 is an equidigital number, since it uses as much as digits as its factorization.

21422316067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

Adding to 21422316067 its reverse (76061322412), we get a palindrome (97483638479).

The spelling of 21422316067 in words is "twenty-one billion, four hundred twenty-two million, three hundred sixteen thousand, sixty-seven".