22400320213 has 2 divisors, whose sum is σ = 22400320214. Its totient is φ = 22400320212.

The previous prime is 22400320207. The next prime is 22400320247. The reversal of 22400320213 is 31202300422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14908898404 + 7491421809 = 122102^2 + 86553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22400320213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22400320013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11200160106 + 11200160107.

It is an arithmetic number, because the mean of its divisors is an integer number (11200160107).

Almost surely, 2^22400320213 is an apocalyptic number.

It is an amenable number.

22400320213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22400320213 is an equidigital number, since it uses as much as digits as its factorization.

22400320213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 22400320213 its reverse (31202300422), we get a palindrome (53602620635).

The spelling of 22400320213 in words is "twenty-two billion, four hundred million, three hundred twenty thousand, two hundred thirteen".