2224112221 has 2 divisors, whose sum is σ = 2224112222. Its totient is φ = 2224112220.

The previous prime is 2224112207. The next prime is 2224112237. The reversal of 2224112221 is 1222114222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2191176100 + 32936121 = 46810^2 + 5739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2224112221 - 2²³ = 2215723613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2224112021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112056110 + 1112056111.

It is an arithmetic number, because the mean of its divisors is an integer number (1112056111).

Almost surely, 2^2224112221 is an apocalyptic number.

It is an amenable number.

2224112221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2224112221 is an equidigital number, since it uses as much as digits as its factorization.

2224112221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256, while the sum is 19.

The square root of 2224112221 is about 47160.4942828211. The cubic root of 2224112221 is about 1305.3257303099.

Adding to 2224112221 its reverse (1222114222), we get a palindrome (3446226443).

The spelling of 2224112221 in words is "two billion, two hundred twenty-four million, one hundred twelve thousand, two hundred twenty-one".