22224122213 has 2 divisors, whose sum is σ = 22224122214. Its totient is φ = 22224122212.

The previous prime is 22224122171. The next prime is 22224122227. The reversal of 22224122213 is 31222142222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21050237569 + 1173884644 = 145087^2 + 34262^2 .

It is a cyclic number.

It is not a de Polignac number, because 22224122213 - 2¹⁸ = 22223860069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22224124213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11112061106 + 11112061107.

It is an arithmetic number, because the mean of its divisors is an integer number (11112061107).

Almost surely, 2^22224122213 is an apocalyptic number.

It is an amenable number.

22224122213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22224122213 is an equidigital number, since it uses as much as digits as its factorization.

22224122213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 23.

Adding to 22224122213 its reverse (31222142222), we get a palindrome (53446264435).

The spelling of 22224122213 in words is "twenty-two billion, two hundred twenty-four million, one hundred twenty-two thousand, two hundred thirteen".