21422223313 has 2 divisors, whose sum is σ = 21422223314. Its totient is φ = 21422223312.

The previous prime is 21422223301. The next prime is 21422223337. The reversal of 21422223313 is 31332222412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12613086864 + 8809136449 = 112308^2 + 93857^2 .

It is a cyclic number.

It is not a de Polignac number, because 21422223313 - 2⁵ = 21422223281 is a prime.

It is not a weakly prime, because it can be changed into another prime (21422223913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10711111656 + 10711111657.

It is an arithmetic number, because the mean of its divisors is an integer number (10711111657).

Almost surely, 2^21422223313 is an apocalyptic number.

It is an amenable number.

21422223313 is a deficient number, since it is larger than the sum of its proper divisors (1).

21422223313 is an equidigital number, since it uses as much as digits as its factorization.

21422223313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

Adding to 21422223313 its reverse (31332222412), we get a palindrome (52754445725).

Subtracting 21422223313 from its reverse (31332222412), we obtain a palindrome (9909999099).

The spelling of 21422223313 in words is "twenty-one billion, four hundred twenty-two million, two hundred twenty-three thousand, three hundred thirteen".